Quote: Dyno'd with manifolds and switched to 2" TTI's becasue of heat issues.
I agree, I need seat time, practice with burn outs and launches
if you switched to TTI's after the dyno session, i would definitely shift the car around 5800-6000 and i bet you see a slight pickup of about 5 hundredths.to probably a .1 i did with almost the same combo. also change out that converter to at least a 4000-4500 stall.
I mis read your cam lift..i see its over .560 so maybe you dont have enough stall..i would say 4000 or 4500 would be closer like SS says. Not being able to hold the car sounds familiar, my challenger did the same thing until I went to a Coan. You might consider trying a different convertor, I had a 3000 stall J.W. that felt just like stock. Went to the 3500 Coan and could hold the car at 3000 rpm with my stock drum brakes.
