Posted by M.A.V. on March 07, 1999 at 23:36:46:
In Reply to: The '73 doesn't have an air injection pump... posted by T.L. on March 07, 1999 at 22:26:27:
: ...and 2-1/2" exhausts are way overkill for a 302...
: It depends on the 302 in question. I agree that a basic street(daily driver ) would be fine with 2-1/4 exhausts,But take a look at what all of those 5.0 mustang guys are running . AND note it`s never less than 2-1/4 ,and it`s usually 2-1/2 many are street cars with air ect. And MANY RUN stock bottom end engines with better heads cams and intake set ups and those guys run 12`s or better in the 1/4 mile with good street driveability! I had 2-1/2 on my mav for 12 years and with 3 different engine combinations , it allways had good street (low r.p.m.)torque, and the mildest engine I had was a factory stock bottom end with a 445i/280e cam with milled and ported (exh. only)heads shelby intake,650 carb,ran a stock converter,and a 3.25 rear gear it ran a 13.95 qtr. mile! Now I run a 3inch system with flowmasters and hooker headers BUT ...it`s a 12.8 to 1 engine that runs 11.60`s @ 115 m.p.h!