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Old 03-12-2012, 03:11 AM
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You need to cc the heads. Chamber volume varies a lot.
not all the 305 heads are worth using.
a 283 will need a stiff gear and very high stall. 10" 3500++stall at minimum
a 8"-9" full race is not too much converter.

624 heads have a very large chamber.

That cam wants 10:1 cr +. 283 w small dome and thin gasket needs a 55cc head.

measure the finished heads and mill as required.

degree that lunati cam and move it to a 103-104 intake C/L

Last edited by F-BIRD'88; 03-12-2012 at 03:18 AM.
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