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Old 09-04-2013, 04:21 AM
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Use 1 of the online DCR calculators to play around with different head chamber sizes & cams to see what your CR would be with different combos.For instance,with flat tops & a 64cc head,you are gonna be in the neighborhood of 10:1 SCR which would be borderline w/ iron heads,but,fine w/ aluminum.Cam choice will also play a role in your final effective CR (DCR) as well. Comp cams XR264HR would be a good choice for good streetable cam depending on what you HP goals are.IIRC,the stock EFI can support approx 400 HP.
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