Seller notes

Vacuum Advance Lock-OutFits Most HEI DistributorsLocks Vacuum Advance Fits most hei distributorsLocks vacuum advance timingIdeal upgrade for applications where vacuum advance is not needed such as drag racingMade in usa with high quality components and assemblyNote: incompatible with aftermarket oldsmobile & pontiac hei style distributors, since they have counter-clockwise rotationReplaces Vacuum Advance Canister to lock Vacuum Advance on Most GM HEI Distributors. Does NOT fit aftermarket Olds &...

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