Best power valve

[Coley]

I appreciate the advice on the power valve guys! Any suggestions on which I should buy? Single or Double stage? Anyone got any part #'s? I got one from Napa's site for a single stage for $20.

Thanks again!

[Chevelleguy]

Your carb came stock with the 2 stage power valve. The first stage opens at a relatively high vacuum level(9-12.5 in). This partial enrichment allows for smaller main jets that would be too lean for a single stage power valve at very light throttle. Just get the stock replacement for your carb.