smiths89t/a

I have a 87 GTA with the fastburn 385 a hotter cam, 3.45 gears, 5 speed, street tires, had it dynoed yesterday, it came out to 326 hp at 6000 and 344 ft lbs at 3700 it was on a dyno jet dyno. thanks

1989GTATransAm

iTrader: (3)

As long as the 5 speed holds up I will say a 12.95 @ 107mph.

I wonder why your torque is on the low side. IMHO you should be up around 400rwtq.

smiths89t/a

my af ratio was in the 12s the hole time, plus I have the holley street avenger 770cfm with vacuum secondaries, any advice would be great. thanks

mw66nova

iTrader: (13)

my advice, get rid of that stupid vacuum secondary carb. put a double pumper on it and HOLD ON! and if your worried about mileage, don't be. as long as you keep your foot out of the secondaries, it will work just the same as a vacuum secondary, if not better(cause your not tippin into the secondaries on accident all the time...you can feel it in your foot when the secondaries are opening on a double pumper cause the tension is greater). with a 700r4 and lockup converter, i've managed 22mpg on the higway. intown i've managed 16, though 14.5-15 is average (probably what your getting right now around town.)

smiths89t/a

So the carb could be some of the problem, I bought the motor in the car so the carb was on it when I got it. I am looking into an holley 850 with the choke tower removed. what would you recommend for an intake? as for the cam its a scoggin dickey .575 int .595 ex with 234 int 242 ex duration @ 50 any Ideas on why the torque is low? its not a stroker just a 350 but I would figure the torque would be higher, also the cam is what they put in the zz 465 so I am losing power some where. thanks

mw66nova

iTrader: (13)

i'd venture to say that cam is too big...and an 850 would be a bit much too. i'd say a 750 would be best.