94gtcobra

Well the runners look the same as well but i guess millimeters count that you can't see with the human eye.

mjr46

true^^^^but remember looks can be decieving

67mustang302

There's no way you can tell plenum volume just by looking, or runner length, cross sectional area and taper.

5spd GT

The lower is the same between the Performer and the Performer RPM (different upper). The RPM II is the ugly duckling of the three.

mjr46

^^^^^maybe so but looks can be decieving

jtmustang

i think u made a good decision as in getting the rpm 2 i have it on my 306 and with the cam it pulls mad hard above 3000 and have not gave my new motor to the floor yet let off at around 5700 and it was a good sotp feel

cortlan

hey, might sound dumb but if in the future i wanted to bore out my 1994 gt 302 to a 347 maybe(still undecided), would the RPM 2 intake still perform well?

WhiteWindsor

You mean stroke. Yea... the rpm 2 will be fine for a 347

cortlan

ok cool thanks just making sure that i don't have to get a whole new intake if i get it stroked out!

67mustang302

You'd need a stroker kit to make a 347, but yes, that intake will work well on it.