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chevydog66 · 11-22-2009, 09:38 PM

Royal Purple is also worth a few hp on the dyno. It's all I run in my 406 sb that's in my 66 Chevelle. 573hp on the dyno, on pump gas.

11-22-2009, 09:38 PM	#14
chevydog66 GM ONLY BABY!!! Join Date: Oct 2003 Location: Fort Wayne, IN. Posts: 1,998	Re: Funky problem solved by royal purple Royal Purple is also worth a few hp on the dyno. It's all I run in my 406 sb that's in my 66 Chevelle. 573hp on the dyno, on pump gas. __________________ 2 wrongs don't make a right, but 3 lefts do. 66 Chevelle Malibu 406ci, 573hp, 10.99@121mph 96 Chevy Silverado Z71 72 GMC 1500 Super Custom LS 6.0/4L65 on airride http://www.cardomain.com/ride/707879...mc-c-k-pick-up