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**JET** · 11-09-2007

Gross lift is after you take the rockers into effect, cam lift is just the cam. Duration is how long the cam stays open. A very important factor that is rarely included is the ramp angle, that is the biggest factor in if you need stiffer valve springs.

11-09-2007	#48
JET Is funding Exxon. Join Date: Oct 2003 Location: Ham Lake Drives: like a bat outta hell! Posts: 7,983	Re: Which cams? Gross lift is after you take the rockers into effect, cam lift is just the cam. Duration is how long the cam stays open. A very important factor that is rarely included is the ramp angle, that is the biggest factor in if you need stiffer valve springs. __________________ Is burning corn and stayin' warm! My motorcycle is stock and reliable, my Talon is neither!