Retard timing

Anybody chime in on this going to run 250 shot where should I start with timing retard at. Is it 2% for every 50 shot. Thanks Dave

Iron heads or aluminum?

Where is total now?

What fuel?

progressive controller?

All this helps to know if you put it on the edge you will gain a little more than a book setting

Aluminum 290 port trick flows 110 fuel running 34 timing and a 1050. 4150 carb. Unfortunately the intake I'm stuck with is a torquer 2 for hood clearance. And running 10.-1 pistons.

With that combo I would set it at 26 total and a little fat then creep down on it and adjust timing as needed.... remember new plugs no idle time roll it to line and shut it down past the stripe

^^^^ I agree you should be able to remove 8^ as opposed to 10^with enough fuel especially w/alum heads as a safe point, are using a retard box? If this is a new test pilot effort be careful of the RPM chips and the activations nos doesn't like rev limiters.

6al box open throttle switch rev is set at 7200 shift at 6400

dave d wrote:6al box open throttle switch rev is set at 7200 shift at 6400  

You are gonna put your eye out Dave.

dave d wrote:6al box open throttle switch rev is set at 7200 shift at 6400  

Last small block combo, pulled the 8100 rev chip out when I juiced it and hit 8500 ...slept on the shift or the car picked up Good thing the chip was removed or the internals would have been too!

bbf-falcon wrote:

dave d wrote:6al box open throttle switch rev is set at 7200 shift at 6400  

You are gonna put your eye out Dave.

Not his eyes but the guys next to him will be like