Quote:
Originally Posted by speED
With the blue bushing I get total around 3500 rpms, I think the detonation is a cruising/ off idle situation. I have avoided WOT since I noticed the first sign of detonation. At 55mph I run 3000 rpm.
Car Weighs about 3100, 4.30 gear, 26" tall tire, 14 in. Hg @ 900 rpm
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That would be exactly right.
I'd be running 1 light blue and one light silver with a 3100 lb car and that gear. Or even 2 light silvers.... and get all the timing in by 2500 rpms...
Did you READ the plugs and find "salt and pepper" on the nose?? Also do you know how to read the strap -- and see where it changes color? Perfect timing will have it change color right in the apex of the bend.