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The PAC 1207X dual valve springs are part of their line of RPM series which have a max lift of a huge
The Torquer V2 232/234 camshaft is proven to be a great choice with gains of approx 50 - 55 rear wheel horsepower with the right combination of performance bolt ons
Manley have been a proud name in the drag racing & motorsport scene with a solution to many racers needs
and allows the OEM system to be retained intact if you ever need to return the vehicle back to original condition
Crow Cams 221/238 Camshaft Package | 871286 LS 347ci LS1 Forged Engine Upgrade The PAC 1207X dual valveLSX Performance Parts proudly supplies the entire Crow Cams range. Crow Cams have a rich history in performance with over 30 years experience going towards each & every camshaft that leave the factory. Every Crow Cam is ground using only the highest quality cast iron or steel cam billets which are sourced from the leading suppliers in USA & Europe. Prior to grinding, Crow Cams ensures every billet is straightened to correct any distortion that