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**JET** · 02-06-2009

I run standard Crowers in my car too. I put a small shim under them, but it wasn't much, .025" or something? I run Crower 415's too, which should be much bigger than the 272's. The ramp is one of the big things with springs, but I doubt they would ramp up that extreme for a medium cam. I bet you would be fine with the Crowers.

02-06-2009	#10
JET Is funding Exxon. Join Date: Oct 2003 Location: Ham Lake Drives: like a bat outta hell! Posts: 7,983	Re: Valve Spring choice/seat pressure ?? I run standard Crowers in my car too. I put a small shim under them, but it wasn't much, .025" or something? I run Crower 415's too, which should be much bigger than the 272's. The ramp is one of the big things with springs, but I doubt they would ramp up that extreme for a medium cam. I bet you would be fine with the Crowers. __________________ Is burning corn and stayin' warm! My motorcycle is stock and reliable, my Talon is neither!