VAKUUMKLOCKA HEI 265-455cui 1968-80 Olds Chevr Pontiac, ACCEL 31035

New Accel distributor vacuum advance. This is a performance replacement (adjustable) advance mechanism. 
Adjustment is done through the vacuum port using a hex key.
 This is for the “large cap, latch down” factory Chevy, Olds, and Pontiac 
distributors using an internal HEI igniton coil. 
Fits the following:
74-80 Firebird/Trans Am w/ 265, 301, 350, 400, 455 Pontiac engine
77-79 Firebird/Trans Am w/ 403 Oldsmobile engine
74-80 Camaro w/ 305/350 Chevrolet engine
1968-1970 Oldsmobile Toronado 442

ADJ,VAC ADV GM V8 HEI DIST