QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 12" Tall - 170 lb. Threaded Insert Mandrel and Nosepiece there is a mechanical advance

there is a mechanical advance assembly that is mounted on top of the distributor shaft making it easy to adjust the advance to meet your needs

These late model Ford coils are designed as direct replacements for Ford Shelby GT350 and GT 500 5

Compatible With Gasoline Or Alcohol

DynoMax SS Cat Back Exhaust 05-14 Toyota Tacoma 4

1982-1991 Pontiac Firebird CID 305 Naturally Aspirated GAS

QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 12" Tall - 170 lb. Threaded Insert Mandrel and Nosepiece there is a mechanical advanceQA1 has engineered a complete line of coil over springs to complement its line of shock absorbers and struts. Each spring has been designed to be as light as possible without sacrificing performance, withstand the loads of today's racing suspensions and outperform the competition at an affordable price. Available in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of high travel springs with a silver powder coated finish. Made in the