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.


2010 Black Challenger SE <> 3.5 V6
Custom Shift Knobs www.flameball.com Check It Out