bigger throttle body

[Jeff85]

thinking aobut getting a bigger throttle body, what will fit and be the best for performance, 2.8L firebird.

[SappySE107]

I am not aware of any available now. I know TCE is working on some RWD MPFI throttle bodies. I don't know what year your firebird is nor if there any changes between years to contend with.

[ForcedFirebird]

I don't know what year your firebird is nor if there any changes between years to contend with.

2.8 means it's a pre-'90, and yes there are changes from '82-'89 to deal with.

[Jeff85]

sry, its an 89

[ForcedFirebird]

You got the MPFI 58mm TB. What other mods do you have that are requiring a larger TB?

[Jeff85]

i'm just looking into it, i dont have any engine mods other then, pulleys, intake and exhaust, just doing some research is all, im starting to see that having a bigger throttle body is only usuful with extensive engine work.