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Old 02-22-2024, 09:02 AM
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67drake 67drake is offline
Ultimate Warrior
 
Join Date: Aug 2007
Location: Muscoda WI
Posts: 2,873
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Gee, thanks guys.
Not my first rodeo.
Having detonation problems also. Advancing timing just aggravated the detonation on WOT.
I also had a hell of a time sourcing heavy factory springs to slow down the mechanical timing curve. I was more or less just updating an old thread I started. This is the street section also, not everyone has the fantastic talents you possess.

__________________

71' GTO -original 400/4-speed/3.23 posi
13.95 @ 102.1 on street tires @ 4055lbs.

‘63 LeMans- ‘69 400 w/ original transaxle. 2.69 gears.