65mm or 70mm throttle body?

[5.0kid]

which should i get? or is it worth the 100 dollars for one? I'm thinking of keeping it stock for now since i'm on a budget.
windsor jr heads, trick flow stage 1 cam, and cobra intake.

 

[95 svt cobra]

well, the cobra intake inlet is 70mm so it wouldnt hurt to get the 70 for future upgrades.

 

[5.0kid]

how much would it really affect it though, hp and fuel wise?

 

[Paul]

If you have the combo listed and are running a stock throttle body, then you would have a measurable gain. The difference between 65 and 70 would likely be negligible.


I thought Cobra intakes had a 65mm opening?

Paul.

 

[wytstang]

Ever though about figuring out what the entire top end flows and matching it that way?

 

[5.0kid]

how do you figure that out? also, i think i may just go with one of the ford racing ones off ebay. 70mm polished one for 105 shipped is an ok deal.