QA1 Pro Coil High Travel Coil-Over Spring - 4.125" ID 11.0" Length 300 lb/in Spring Rate - Silver Powder Coat Mechanical Boost Gauge All inline tees have 1/2"NPT

All inline tees have 1/2"NPT threads for probe fittings and 1/4" holes for mounting

This Pro-Billet Distributor from MSD features an adjustable cam sync pickup as well as a magnetic pickup inside the distributor to trigger the ignition control

ProTuner 525

It stops voltage leaks

1967-1969 Iso S4 Fidia

QA1 Pro Coil High Travel Coil-Over Spring - 4.125" ID 11.0" Length 300 lb/in Spring Rate - Silver Powder Coat Mechanical Boost Gauge All inline tees have 1/2"NPTThese silver powder coated springs fit perfectly with QA1's Pro Coil Shock Systems. These springs are available with flat and pigtail ends and in 10" and 11" free lengths. Made with the highest quality materials, QA1'springs are strong, consistent and have a long life. All QA1'springs are manufactured using the highest quality materials for high strength, consistency and long life. They are cold wound, heat treated and shot peened to ensure