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AZ59apacheguy · 02-09-2018, 12:07 AM

Hi. I found the numbers on the face and it is a 6.5 power valve. According to the one video I saw, you take your manifold vacuum and devide by two, since mine is a stock engine and manifold and it normally runs around 19inches, does that mean I need the 7.5? Or is the 6.5 good enough?

02-09-2018, 12:07 AM	#7
AZ59apacheguy Registered User Join Date: Sep 2011 Location: South West Posts: 431	Re: Jet size recomendations please Hi. I found the numbers on the face and it is a 6.5 power valve. According to the one video I saw, you take your manifold vacuum and devide by two, since mine is a stock engine and manifold and it normally runs around 19inches, does that mean I need the 7.5? Or is the 6.5 good enough?