[WayFast84]

just FYI

Originally Posted by Dirt Reynolds

Wayfast84 -- yes, I did use a camshaft that is of the older style -- on purpose. I am not totally convinced the newer 'fast-ramp' style camshafts are any better or even beneficial for use with Vortec heads for a number of reasons. Granted -- I could be wrong on this since I personally have not back to back tested this theory, but after a lot of consideration and some digging around I simply did not find much evidence that guys running the 'XE' type cams are doing any better than those of use running the older so-called 'slow ramp' designs. Consider this: Car Craft magazine did a build-up once with a GM crate 330HP 350, which comes stock with the Vortecs. The camshaft is of the non fast-ramp variety 212°/222° @ 0.050". CC pulled the stocker cam and replaced it with a much larger Comp XE268 which is 224°/230° @ 0.050". Net result after all that work: 7 HP. That's right -- 7 HP. Granted, the compression ratio was 9:1 which does make a differnce and benefits the smaller stocker cam more, however you would think for the faster ramp profile and supposed better power of the XE line, something better than a 7HP net would have been the result. Something to think about.