09-04-2001, 11:05 AM
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CC Member
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Join Date: Jun 2001
Location: Washington DC Metro (Virginia),
VA
Cobra Make, Engine: Classic Roadsters, Tweaked 351W, T-5Z, CRII Tech Support Team.
Posts: 1,895
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Not Ranked
Jack,
I'm thinking valvesprings more than anything else, particularly with a hydraulic roller and mix & match parts. The roller lifters tend to be heavier than regular hydraulic lifters, so a stiffer spring is needed. Talk to the tech guys at Crane & Comp and see which spring you should be using.
Almost any aftermarket performance cam, even the milder grinds, should be able to rev to 6000 - 6200.
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