Talk to Holley tech and they recommended getting the right metering block . They didn't have the part number on hand??
I went to summit and searched and came up with HLY-34R11196AQ. The orginal jets where 71 and 85. Is that a good place to start? I might be a little big with 800cfm. Should I drop down on jet size or does that matter to get a proper mixture.
Ron
