70mm or 75mm TB, which one for a stock engine?

[tireburner163]

Originally posted by 96_4.6
No Sh*t, i figured more air would be better, screw it then i guess unless someone else says otherwise....thanks

See that's the problem, a TB that is too large will give you more air.......air you don't really need. The power killer is that too large of a TB kills velocity which is very important.