Description
MOROSO ADJUSTABLE VACUUM ADVANCE CANISTER KIT FOR 1975-81 GM STYLE H.E.I. DISTRIBUTORS
Moroso Adjustable Vacuum Advance Kit
Dial in spark advance with this Moroso adjustable vacuum advance kit. It allows you to change the amount of ignition vacuum advance for maximum part-throttle performance while preventing harmful effects of detonation spark knock. This kit can be adjusted as conditions permit to add more vacuum advance for improved throttle response and fuel economy under light loads or less for high loads and high compression engines to eliminate knock. This vacuum advance kit has a built-in stop to prevent the adjustment screw from “backing out” and includes an Allen wrench and easy-to-follow instructions for a no-hassle install. Get dialed-in for a better run with this Moroso adjustable vacuum advance kit.
For 1975 to 1981 GM style H.E.I. distributors and replaces the standard vacuum advance canister that is not adjustable giving you much more total degrees advance and giving you much better high performance for your GM car or truck.
