TB comparison questions ...

[D1A8J]

i have a 52mm tb on my '91 spirit r/t. (bone stock)

i was wondering what are the specs on a true 58mm tb, and a tapered 58mm tb ???

im pretty sure i wouldnt benefit from a true 58mm tb, but would i gain anything from a tapered 58mm tb, or would it just be a waste ???

any1 ever mess around with a tapered 58mm tb ???


let me know,
- Dave

[Terry Again]

All I've read says that any increase in TB size with stock manifolds gets you less gas mileage and no increase in performance. The manifolds are the problem and it can't be ported away It has to be modded away!!
That's what I know you can wait for other replies,
Terry
I'm brain damaged,what's your excuse?