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Steve Lackey · 08-10-2017, 09:15 AM

Have you tried any header tuning while on the dyno? These engines really benefit from the exhaust scavenging. That is why the original Stage 2 heads were so effective.

08-10-2017, 09:15 AM	#68
Steve Lackey Junior Member Join Date: Aug 2008 Location: Columbus, IN Posts: 7 Likes: 0 Liked 0 Times in 0 Posts	Re: 1971 Buick 455 GS F/SA G/SA Build Have you tried any header tuning while on the dyno? These engines really benefit from the exhaust scavenging. That is why the original Stage 2 heads were so effective.