QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 14" Tall - 110 lb. 38500310 Power Module

Power Module

Produce Easier Starting/Greater Throttle Response

and chrome dipstick head and fittings

760 in Valve

Advance Spring and Weight Kit - Precision stamped weights and center plate eliminate erratic timing three sets of springs and complete installation instructions make recurving your HEI distributor easy

QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 14" Tall - 110 lb. 38500310 Power ModulePowder Coated, Chrome Appearing Silicon Manganese SteelAll QA1 springs are manufactured using the highest quality chrome silicone. This material offers high strength, consistency and longer life. Cold Wound Heat Treated Shot PeenedAll QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability. Squared EndsAll QA1 springs are ground at both ends to ensure straight, consistent and accurate operation.