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09-12-2002, 08:49 PM
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#2 |
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Registered Member
Join Date: Nov 1998
Location: Houston, Tx.
Posts: 3,887
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35-38
I'm expecting you'll want 35-38 total all in by 3000 rpm. That's really just a guess though. Try that and see if you get any pinging or knock and good performance. If you do get pinging or knock, retard it a little until it doesn't do it and then maybe a little less.
When I ran 351W heads on my 306, I ran a whopping 45 degrees total because that's how it ran best with those relatively inefficient heads. With my more efficient TFTW heads, I run 38 toatal and 15 initial advance. I determined that at the drag strip. I advanced until I didn't get anymore performance improvement and with out detonation and then set it there. Rev
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'66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe |
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