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Old 01-14-2013, 05:59 AM
454C10 454C10 is offline
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This is one of those, "if it ain't broke then don't fix it" situations. Going to a bigger cam, especially a voodoo or extreme cam increases the chances of the cam going flat and eating up the engine bearings.

However, more cam would work better. I would use an old school Comp Cam 292H (244/244, 110 LSA, 0.501"), as it is a lot less likely to go flat due to softer ramps Get the cam hardened and use an oil additive (zddplus.com). Plus you don't need a split duration cam with those heads. Should make power a little past 6000 rpm in a 400 cid, 6500 in a 350.

Good luck!
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