[Stan Weiss]

Originally Posted by 78w72

Great advice here & applies to my set up that also has traction/launch issues, engine is similar but less than the OPs car.

My setup is a 72 firebird, 467 stroker kit with stock unported 72cc E-heads, SD old faithful roller cam, Cliff built Q-jet & SD ported cast iron/HO intake. TH400, continental ~3200 converter, 3.23 gears. Has the same PTFB dropped front/rear springs & subframe connectors, using cheap summit 3 way drag shocks, no traction bars. Runs 11.3-11.4 at 119 with ease in any temps, best is 11.2s at 121-123mph.

I was very surprised & happy at the times & speed, expected mid to low 12's, but upset at the traction issues, I have to launch off idle too & it has some fuel starvation issues on good runs using a robbmc 1100 pump & 1/2" pickup. Those 2 things are holding it back but happy with the car since its more of a street/strip/light auto-x car.

I will 2nd or 3rd the wheel/tires, the 17" wheels are cool but heavy & hurt traction since theres much less sidewall, I bet just going to a 15" wheel/tire like some draglites makes a big difference in speed & launch. I have the older M/T drag radials but plan to go to the newer compound or the 275/60 Pro bracket radials that Ive read are the best radial tire option today. Also electric fuel pump to eliminate the starvation issues. With those issues fixed im hoping for a 10.9x or better.

With 340 heads, bigger cam & 1300 FI that car should easily be in the low 11s or high 10s & 120+ mph, like myself or many other street/strip cars, there is a lot more in it if it can be dialed in more.

Since the first 60 foot can make or broke a run. What were your 60 foot times?

Stan