552 header advice

Looking to get header advice/recommendations for my 552ci build.  I'm currently running a 2" fender exit header but need to move to chassis exit.  Intended use is mud, mud drags, sand, and a lot of street driving.

My questions is, of the below options what do I gain/lose with one of the below options?
Option A: 1-7/8” primary with 3” collector – long tube headers
Option B: 1-7/8" primary with 3" collector  - shorty (Sanderson FF463)
Option C: 1-3/4 primary with 2-1/2 collector – shorty (mid-length header)
Option D: 1-3/4 primary stepped to 2” stepped to 2-1/2” – tri-y headers

Additional Specs:
-1979 bronco @ about 5400lbs
-10.99:1 compression
-out of the box AFR 285cc heads  (flow 396/267 @ .600)
-AFR 4150 intake
-Quick Fuel 1050
-Broader Performance C6 with flash stall of 3500
-42.5" tires with 5.38:1 gears

Cam specs:
Solid flat tappet
I = 255@.050, .623 lift
E = 259@.050, .637 lift
116 lobe sep, installed at 110

What is going to be the max rpm range this engine sees?

You need to look for other option, those are all small forthe build you have described

Straubtech wrote:What is going to be the max rpm range this engine sees?

Pk hp is at 5500; pk tq is at 5000. shift point is 5900

ford385 wrote:

Straubtech wrote:What is going to be the max rpm range this engine sees?

Pk hp is at 5500; pk tq is at 5000.  shift point is 5900

Did you dyno it?

You will need a 2" header for the rpm range you want to run it. 1 7/8" will choke it at around 4800-5000 rpm.