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Ive got about 8 inches of vacuum on my ported vacuum connection Its a quickfuel metering block. what's with that?
The ported vacuum tap "should" enter the barrel at a point above the butterfly blade where there is no negative pressure at idle. When the throttle opens the leading edge of the throttle blade moves up past the hole and Ported vacuum now behaves simiar to manifold vacuum since they both reference a point below the throttle blades now.
If you see vacuum at the ported vacuum fitting at idle it means the throttle blade has moved too far and uncovered the hole. The throttle blade also probably uncovered too much of the transition slot and you are suffering problems getting the ideal idle mixture right.
If it were me, I'd adjust the secondary idle stop screw to open the secondaries a little more and back off on the curb idle to get the throttle blade position back where it should be. You could drill holes in the primary plates but those are hard to reverse.
2017 Contusion Blue Challenger T/A 392 M6 "BLKNBLU"
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