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Old 03-19-2010, 03:21 PM
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patrickt patrickt is online now
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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Quote:
Originally Posted by dcdoug View Post
Yes, I have the cam card. Here it is:
Your overlap at .050 is 30 degrees (just add IVO and EVC). In contrast, my overlap at .050 is 17 degrees. Your other numbers are not really seat-to-seat, they're a little bit up from that, so you can't compare them to mine, but I'm pretty sure I remember the "B" cam to have 112 degrees overlap seat to seat.

EDIT -- of more interest, though, is the fact that your intake center line is 105 and your lobe separation angle is 106. Your builder probably installed the cam with the key in the 2 degree advanced slot and it measured out at 1 degree advanced. Now, let's see if ol' Chas can explain the math....

Last edited by patrickt; 03-19-2010 at 03:26 PM.. Reason: Thought of something to bug ERAChas with....
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