bb454 Posted August 18, 2006 Report Share Posted August 18, 2006 I'm new ford man but I'm a true chevy guy I bought a 89 mustang coupe and has 351w in it, the guy I bought it from had all kinds of crap messed up. I was adjusting solid lift and he has 1.7 on exhaust and 1.6 on itake what the hell.. Big Daddy Sean Quote Link to comment Share on other sites More sharing options...
twistedfocus1647545489 Posted August 18, 2006 Report Share Posted August 18, 2006 Normally, most guys running split-ratio rockers put the higher ratio on the intake side (mostly old-school Chevy guys). Nowadays with modern, efficient cam grinds available and aftermarket heads with a good intake/exhaust flow balance, there is little need for such a thing. My guess would be that the guy did that on purpose b/c the factory ford heads are notorious for having very weak exhaust flow and thought that would be a good way to bring some balance back. So, it's not what is normally done, but I could see someones possible reasoning for doing it. Quote Link to comment Share on other sites More sharing options...
Mattsv8 Posted August 18, 2006 Report Share Posted August 18, 2006 how much power is the motor making? most higher end motors need that to keep the exh up. i run 1.52 and 1.6 which is .654 intake and .688 exh. which helps when reving it past 8000. also i am spraying and wanted the extra exh lift and durr. Quote Link to comment Share on other sites More sharing options...
bb454 Posted August 18, 2006 Author Report Share Posted August 18, 2006 The cam is 640 lift and has TFS aluminum heads..11 1/2 to 1 Quote Link to comment Share on other sites More sharing options...
Mattsv8 Posted August 18, 2006 Report Share Posted August 18, 2006 than i would say the rockers were an attempt to make the cam larger. you could borrow a set of 1.5s and head to they dyno to see if the change was needed. i dont really need the 1.6s untill im trying to shift at 8400. which is on the bottle. i should have some dyno time soon and im going to swap between 1.5s and 1.5 int with 1.6 exh. and see what that gets me. ill let you know. 1.7 is prety high though Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted August 18, 2006 Report Share Posted August 18, 2006 matt , ford had 1.6 factory...you dont go 1.5 with them. thats chevy shit.. Quote Link to comment Share on other sites More sharing options...
Mattsv8 Posted August 18, 2006 Report Share Posted August 18, 2006 i missed the whole ford thing? oops. Quote Link to comment Share on other sites More sharing options...
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