I Might Have Found Something Pretty Cool.....

RustyRatRod said
I thought it was pretty good too, considering the valves only have the factory 45 right now. Probably won't have it flowed again. What do you think a 30 and a 15 will add to the backs of them? Anything? Not that it really matters. lol

I think the factory does like a 60-45 + 0

15 can pick up the flow up to .400, but typically just a 30 alone will bring you a stronger Peak number-60,45,30

Some factory stuff looks steeper even, like 75 .