what manifold

You guys running 347's, what manifold,size throttle body,size injectors are you running?

i would use either the trick flow track heat intake or a holley systemax intake.a 70mm throttle body and 24 or 30 injectors will work good with a 347
[addsig]

we just installed the trick flow R series on my buddies 347 and the car seems to have all kinds of power. the holley or trick flow track or R series would seem to be good choices.

oh, he is also running a 70mm t.b., 75mm mass air, and 30 pound injectors, hope this helps.

Allen......what heads,comp ratio,ecu and cam is your mate running?

he is running trick flow box stock heads, 9.5 to 1 compression ratio, stock computer, and a e-series cam.