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I believe the modulator has a set screw in the hole that the vac line goes to. should be a flathead. try turning in a couple turns then try backing out a couple turns if that doesn't help.
Also make sure vac line isn't melted on exhaust. i it is,,, this could give you good vac reading with a vac pump but indeed not giving vacuum to the mod. valve due to it melted shut.
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Quote:
Originally Posted by SRGN
I never pulled into the staging beams at the track and saw a dyno in the other lane.
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South Jersey Racecraft
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