Originally Posted by sprintertech
just a heads up guys....im still here but i have been so busy lately i havent had a minute for play time.....i recently spoke with an engine guy at chrysler....managed to get one of the instructors to email them for me....either way he couldnt give me an absolute answer that it would/wouldnt have interference but stated that he would speculate that it would have a clearance issue because the 6.4 pistons are notched....so im ordering a back up plan cam because once i get that far into im not backing up.....ive also been trying to see whats the best time i can get out of it with the cooler air coming....ive seen one guy claim a best of 14.18 with a predator only.....my best so far has been a 14.3 on a 85deg day......soon as i got more info ill post it up...thx!
Did you not tell SH what you were borowing their shop for and what they were going to be tuning? I'm suprized that they didn't inform you with all the tunes they've been through. I didn't want to be the one to ruin the excitement not to mention I was hoping you guys had some sort of trick up your sleeves. Both the 392 crate and 426 use the same cam and they both have valve releifs cut into them with about .100" clearance on the ex and about .080" on the int. That's not to bad really, but Mopar doesn't recomend using it with flat tops anyway. Sorry to hear the disappointment, hope you find the right numbers cam.