PAC Racing 1200 Series Valve Spring Dual Spring 629 lb/in Spring Rate 1.100" Coil Bind - 1.625" OD SP800BK All harness’ come with SFI

All harness’ come with SFI approval and guaranteed current month dating

Points or module triggered Built-in adjustable rev limiter in 100 RPM increments from 3100-9900 RPM Inductive ignition with long duration spark Low cost boost retard (with optional MAP sensor) or 0-20° selectable nitrous retard

including boost pressure

2020-2021 GMC Sierra 2500 HD 82

PAC Racing 1200 Series Valve Spring Dual Spring 629 lb/in Spring Rate 1.100" Coil Bind - 1.625" OD SP800BK All harness’ come with SFIProduct Description: Valve Spring 1200 Series Dual Spring 629 lb in Spring Rate 1. 100 in Coil Bind 1. 625 in OD Drag Race Set of 16 PAC Racing Springs is part of the Race Winning Brands Family. With more than 100 years of spring manufacturing experience. We understand the demands of racing and provide a commitment to all of our customers to provide the best service possible. We continue to expand products and offer expanded onsite technical services