RHP Tech Tip-Bigger is NOT better! Get the right springs! If you order a .550-Lift cam, get .550 Lift springs (yes….560 lift works). Don’t, however think that .650 or .660 lift springs will somehow be better. They are not! Excessive spring rate for the application and wonky spring oscillations make the combo a poor choice! Much better spring control comes closer to (but still safely out of) coil bind. Also, .550 lift springs have .030-.050 safety margin (they never coil bind at .550 lift) when t

How much more power does a .550-lift cam make than a .500-Lift cam? Naturally the other specs are equal! Find the answer in the latest video I just posted PLUS a BTR Family Feud-Style shootout between the (.500-Lift) Truck Norris NSR, the (.550-Lift) Truck Norris, the Big-Boy Hot Rod and the even Bigger-Boy Red Hot Cam on an all-aluminum 5.3L! I even retested the Hot Rod and Red Hot cams on a wilder 5.3L with fully ported TFS heads and a Fast LSXR intake! Dang Gina-That’s a lot a data! Full vid