if you install full exhaust do you need to re-jet the carb??

[85-302]

iv heard that because of less vacume the carb wont draw as much fuel... so you need to re-jet it to a step higher or something....
can someone elaborate?


thanks

 

[85-302]

ttt

 

[MustangGroupie]

I had an out of the box holley 600 on my 85', ran dumps right off of the 1 5/8" long tubes and never had a problem.

You sure its not 134....I went 13.20's in my 85' (225,000) with stock heads,cam,intake.