70mm or 75mm TB for blown 00 GT
 

what do you guys think.. a 70mm or 75mm Throttle Body? i definately am getting an accufab.. heres just a few things done to my car:

vortech sq-trim (8 psi)
90mm lightning maf
42 # injectors
custom tuned chip
full exhaust

+ tons of suspension & tranny work

long block and intake manifold is untouched

car runs 11.9's on street tires with octane booster

i guess the only other question i had will a 75mm even fit on the stock manifold? i know it will bolt to it but the inside of the manifold looks pretty small.. so in that sense, will a 70 or 75 even make a difference in power other than the 70 having a better throttle response? any advise will help...

The 70mm will be the way to go...

I'm pretty sure that the 75mm would require some sort of "port matching" work....