ZDriver.com - Valve springs

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davis

06-23-2001 01:13 AM

Valve springs

I'm running a 268 deg 474 lift cam with stock valve springs, I hit valve float at a around 6500RPM. I want to go with a stronger spring; but how much stronger? I just want 7000RPM with out fear of bending valves. Also will 300ZX springs work? THANKS

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