Over the years i have noticed every one seems to rate ther 3 valve head flow cfm numbers at .600 lift #1 is there a valve spring really available for a 3 valve that can really handle .600 or better lift? Example Manley has 2 sets avail one is rated at .500 max and their best spring is rated at .580 max. I have seen mixed advertisement for Livernois some have stated up to .600 but read other place saying .550. Comp appears to have the best springs #26125 comps web sit states Max .650 lift.
As far as a .600 lift cam for a three valve there are no shelf cams available at .600 lift. The question is can you even get a custom 3 valve cam in .600 lift I think they should focus on 3 valve head flow numbers at..550 and under if .600 cant be had.
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As far as a .600 lift cam for a three valve there are no shelf cams available at .600 lift. The question is can you even get a custom 3 valve cam in .600 lift I think they should focus on 3 valve head flow numbers at..550 and under if .600 cant be had.
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