Stop in for a cup of coffee

Mopar Tim said

Carb has a 6.5 power valve. Engine has 17 inches at idle in drive. Needs a 8.5. Correct? Guys?

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I use cruise vacuum to choose a power valve. Whatever the max cruise vacuum is, I choose a valve 2hg or so lower. For example, on Vixen, she had a cruise vacuum of 14hg. So I went with a 10hg. It works better IMO from how Holley says to do it.