ccapehartusarmyINF.(ret)
Full Access Member
what is the stock size of the throttle body like on my 5.3 01 suburban i heard they are 75mm
and is it worth it to go with 80 85 or maybe even 90mm TB
also does porting and polishing yer TB really do much
and is it worth it to go with 80 85 or maybe even 90mm TB
also does porting and polishing yer TB really do much