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ACCEL 31035 Adjustable Vacuum Advance GM/HEI Distributor w/Vacuum Advance.
New repack not in original package includes instructions and wrench.
Fits HEI with vacuum advance distributors. Will not work with computer controlled HEI.
ACCEL HEI Adjustable Vacuum Advance Canisters
ACCEL adjustable vacuum advance canisters for GM HEI are designed to give you instant horsepower and throttle response. Adjustable vacuum advance chambers permit infinite settings for 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.
