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Old 03-20-2012, 08:38 PM
leverhead leverhead is offline
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I agree I could get away with lighter springs. They were installed by World Castings when the heads were purchased and rated up to .700 lift. (1.550 diam). The cam I removed was a 260 @ 50, .602 lift 108 lsa with rev kit , rockers are summit aluminum rollers (1.5) and the intake valves are 2.08 so they were sufficient. Comp suggested their springs (954-16) for the new cam which are actually heavier (but slightly smaller diameter) so I figure I would use what I already have and save the $$$.....probably more than I need but still in the safe zone. I may rethink the springs though...

Still dont get the narrow lobe thing...

BTW, what compression ratio are you running...and at what altitude? Is this a street car? Thanks.
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