Throttle Body Size

Aug 06, 2009 5 Replies
R

Can anybody tell me how to measure the throttle body on a 97 Mustang GT,



4.6L.? I am looking to put a 70 or 75 MM Throttle body-- anybody have any suggestions on what one I should go with? Engine is completely stock
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G

Would you would need new computer and injectors too ? They have to be calibrated to each other, I think.

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G

None of that will do squat. He needs PI heads.

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G

The 4.6 is a different beast. NPI heads from 96-98 (some 99s?) are major bottle necks. Besides some power adders, the heads are the first and best choice for an upgrade. Trick Flows are looking pretty good to me. ;)

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