Carb Size for 504 cubic inch?

Is this to be foot brake or transbrake deal??

Footbrake you may not see any gains......

I've been footbraking the car the wholetime but I do have a tbrake in it

Have the manifold modified to accept BOTH model carbs without adapters and then try both carbs and different spacers with each, on the SAME day. Then you'll know more.

will it be tough to make the manifold accecpt both carbs? Seems to be fairly close on bolt pattern

1Bad91 wrote:will it be tough to make the manifold accecpt both carbs? Seems to be fairly close on bolt pattern

PM me your email and I'll send you some photo's.

Each carb will require a slightly different throttle linkage.

rmcomprandy wrote:Have the manifold modified to accept BOTH model carbs without adapters and then try both carbs and different spacers with each, on the SAME day. Then you'll know more.

I would be very interested in this for my currant combo! Any more info on how you did it?

It's tricky and time consuming but, not really difficult on a Victor manifold.
Twist the Dominator carb 2° to the right - now two manifold carb flange mounting holes line up, (Drivers side front and passenger side rear). Mount the carb using those two holes and use a transfer punch though the other two carb mounting holes to mark their location on the manifold carb pad. Remove the carb, then drill & tapp those two locations; (six mounting holes total).

The rest is porting work in order to remove the metal in the plenum area. Use a Dominator base gasket as a template.

Twisting the Dominator carb slightly also allows more distributor clearance so removing the front float bowl for jet changes is made easier.

just had a look at the intake on my 351 and it will work also so i'm thinking i might get the die grinder out and give it a go! I think it is a better option then using a moroso adaptor! Thanks for the good idea!

I have been running a 1000 cfm Braswell 4150 on my D0VE headed 514 and I have tried a 1050 with no et gain at all. Timing is set at 32.

Anybody have a suggestion on why there is no et gain with the dommy.

514 Dove headed, PG, 4.88 gear 2350 tube chassis that runs 5.80s in the 1/8th.

Moodyblues wrote:I have been running a 1000 cfm Braswell 4150 on my D0VE headed 514 and I have tried a 1050 with no et gain at all. Timing is set at 32.

Anybody have a suggestion on why there is no et gain with the dommy.

514 Dove headed, PG, 4.88 gear 2350 tube chassis that runs 5.80s in the 1/8th.

Was the 1050 by Braswell as well?

Dave

Moodyblues wrote:I have been running a 1000 cfm Braswell 4150 on my D0VE headed 514 and I have tried a 1050 with no et gain at all. Timing is set at 32.

Anybody have a suggestion on why there is no et gain with the dommy.

514 Dove headed, PG, 4.88 gear 2350 tube chassis that runs 5.80s in the 1/8th.

With the Dove's on your engine the 1000 4150 may not be the restriction in your intake track.
Put a vacuum guage under the carb and see if it pulls vacuum @ WOT down the track.

I have never had a 1000 cfm 4150 to compare but my Dove headed stuff always picked up going from an 850 4150 to a 1050 4500.

When I had the Ported Dove C's on my ole 466 w/Portosonic intake I was running a 1050 Dommy. Well one of my (bbc buddies) said he would bet me a steak dinner on the way home from the races,that his BG 850 would pick my little ironheaded motor up because he thought it was over carb'ed. I was kinda hungry,so we bolted it on. It dropped off a shade over 2 tenths. The steak was good,but he said his CROW was over cooked.

1Bad91 wrote:

dfree383 wrote:IMO you don't "need" a 1050 dominator, but like Lem has said they are the ticket and generaly make more power than the 4150 stuff.

Are you unhappy with your 1000 4150? Is it not working?

No, it's working fine but many people telling me the dominator will help alot at WOT. Some say I could pick up 2 tenths if not more. I want the most out the motor ya know what i mean

Improving it 2 tenths is a "pipe dream" unless you are now really "out to lunch" with your combination.
You may see 20 horsepower so unless your car normally runs 20 seconds, you'll never see more than a tenth.

DJOHAGIN wrote:

Moodyblues wrote:I have been running a 1000 cfm Braswell 4150 on my D0VE headed 514 and I have tried a 1050 with no et gain at all. Timing is set at 32.

Anybody have a suggestion on why there is no et gain with the dommy.

514 Dove headed, PG, 4.88 gear 2350 tube chassis that runs 5.80s in the 1/8th.

Was the 1050 by Braswell as well?

Dave

No, its a 8896 1050.

IDT-572 wrote:

Moodyblues wrote:I have been running a 1000 cfm Braswell 4150 on my D0VE headed 514 and I have tried a 1050 with no et gain at all. Timing is set at 32.

Anybody have a suggestion on why there is no et gain with the dommy.

514 Dove headed, PG, 4.88 gear 2350 tube chassis that runs 5.80s in the 1/8th.

With the Dove's on your engine the 1000 4150 may not be the restriction in your intake track.
Put a vacuum guage under the carb and see if it pulls vacuum @ WOT down the track.

I have never had a 1000 cfm 4150 to compare but my Dove headed stuff always picked up going from an 850 4150 to a 1050 4500.

I run a portosonic intake with a 2" spacer. The Dove's are ported and the intake is port matched. Came off a older combo but sure does run well. I will try the 1050 again at T&T.

Moodyblues wrote:

IDT-572 wrote:

Moodyblues wrote:I have been running a 1000 cfm Braswell 4150 on my D0VE headed 514 and I have tried a 1050 with no et gain at all. Timing is set at 32.

Anybody have a suggestion on why there is no et gain with the dommy.

514 Dove headed, PG, 4.88 gear 2350 tube chassis that runs 5.80s in the 1/8th.

With the Dove's on your engine the 1000 4150 may not be the restriction in your intake track.
Put a vacuum guage under the carb and see if it pulls vacuum @ WOT down the track.

I have never had a 1000 cfm 4150 to compare but my Dove headed stuff always picked up going from an 850 4150 to a 1050 4500.

I run a portosonic intake with a 2" spacer. The Dove's are ported and the intake is port matched. Came off a older combo but sure does run well. I will try the 1050 again at T&T.

Come over to the house Thursday morning and you can ride to Bowling green with me................ We gonna have a blast

rmcomprandy wrote:It's tricky and time consuming but, not really difficult on a Victor manifold.
Twist the Dominator carb 2° to the right - now two manifold carb flange mounting holes line up, (Drivers side front and passenger side rear). Mount the carb using those two holes and use a transfer punch though the other two carb mounting holes to mark their location on the manifold carb pad. Remove the carb, then drill & tapp those two locations; (six mounting holes total).

The rest is porting work in order to remove the metal in the plenum area. Use a Dominator base gasket as a template.

Twisting the Dominator carb slightly also allows more distributor clearance so removing the front float bowl for jet changes is made easier.

Randy,
can you post up any pictures?

I run a 1000 cfm Race Demon 4150 on my 514. After making quite a few pulls, we added a Moroso adapter plate and ran an old Dominator off one of my brother's cars (1050). It sounded throatier when we fired it up, but after making a pull, the hp/tq chart was pretty much identical to all of our previous pulls. With unported TFS heads and Manifold, and 2'' primary headers and 3.5'' exhaust, I'm guessing it just was out of steam. It pulled less than 900cfm of dry air through the fans with both carbs, so I guess that was it. Changing to a Dominator manifold and/ or a newer QFT/King Demon might have been worth some HP. We will play some more this winter after porting the heads and manifold, and I picked up a 1050 QFT/4150 base carb to try as well.

Moodyblues wrote:I have been running a 1000 cfm Braswell 4150 on my D0VE headed 514 and I have tried a 1050 with no et gain at all. Timing is set at 32.

Anybody have a suggestion on why there is no et gain with the dommy.

514 Dove headed, PG, 4.88 gear 2350 tube chassis that runs 5.80s in the 1/8th.

i would of added about 3 de of timing with dom as a starting point

BOSS 429 wrote:

Moodyblues wrote:I have been running a 1000 cfm Braswell 4150 on my D0VE headed 514 and I have tried a 1050 with no et gain at all. Timing is set at 32.

Anybody have a suggestion on why there is no et gain with the dommy.

514 Dove headed, PG, 4.88 gear 2350 tube chassis that runs 5.80s in the 1/8th.

i would of added about 3 de of timing with dom as a starting point

Ok I might give that a shot...........