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FWIW, I run the Whiplash cam. 229/242 at 0.050, 518 lift, 107 LSA. This is on my 383 with 346 heads milled 0.030, ported/blended, 3 angle valve job, stamped steel rockers. No other mods to the heads. Am using the same springs that I used with the Comp Cam XE262, the one that is recommended by Comp Cams for the 262. Running the Hughes lifters with the cam. The engine runs strong to 6000 RPM. May go higher with no problem, don't know, that's where is shift.



Okay, again i am confused...

Just comparing Comp cam/springs to Comp cam/springs here and leaving Hughes outta this...

The springs spec'd for your XE262 cam (either set, there are two options) are stiffer/rated heavier than the springs spec'd for the Comp cam XE275High-Lift cam i bought my springs for. Shouldn't a considerably stouter cam need stouter springs...??? Something's amiss here.

Either way, its looking like a possible go. Not optimal... but doable. The springs i have were spec'd for an aggressive ramp lobe (again, Comp XE275HL - 231/237 @ .050 and .525"? lift). In fact, ALL the high-lift Comps 'recommend' that spring, even the XE295HL (251/257 and .564" lift).

i think i'm overthinking the original question now... especially seeing how well some seemingly mis-matched combos work, but now its the spring recommendation questions that have me wondering. Anyone...???