This product contains Chromium known to the State Of California to cause cancer and/or birth defects or reproductive harm. www.p65warnings.ca.gov
The Pertronix performance advance curve kit has precision machined cromoly weights and center plate to eliminate erratic timing. Three sets of springs, guide bushings and a complete set installation instructions make recurving your OE HEI distributor easy. Danchuk # 12389 will work on any 1955-1957 classic Chevy running an OE GM HEI distributor as well as other vehicles you may have in your collection.
Danchuk has the largest selection of quality 55, 56, 57 parts for your classic Chevy project.