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Vacuum Advance and timing
My engine performs absolutely great without the Vacuum Advance plugged in to my Edelbrock 650 cfm street carb. I have a ACCEL 52204 magnetic distributor w/vacuum advance and MSD 6AL ignition. I got it timed, runs extremely stong, great idle, nice strong throttle response - I am very happy. Soon as I plug in the hose to the non-emmision controlled side of the carb. (read the manual) it has back-firing with just the opposite previously observed in performance, sputtering, weak response etc. What am I doing wrong and what would I be missing if just locked out the vacuum advance? Running it without it seems to be fine, but the screw in the hose thing is getting old. Decision making time...
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Need to know what your initial timing is set at and what your vacuum is at idle. Hooking it up to manifold vacuum will make it run better and cooler at an idle.
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