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-10% $43.50 Was $48.33
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These ACCEL adjustable vacuum advance canisters for GM HEI are designed to give you instant horsepower and throttle response. ACCEL adjustable vacuum advance chambers for GM HEI permit infinite adjustment to both the amount and rate of advance. The advance chambers include an adjustment wrench and an instruction guide. To optimize your engine's timing curve, you need ACCEL adjustable vacuum advance chambers for GM HEI.
This kit allows you to tailor the spark curve to achieve all the power your engine has to offer and the adjustable feature allows you to do this without spark knock.
Not legal for sale or use in California on pollution controlled motor vehicles.
Fitment:
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov