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Cam install questions

No reason to use LS7 lifters unless your lifters are junk, don't worry about them or the pushrods for your simple xp set up.
 


I was only going to do lifters and rods because I'm there. I figured I might as well. What about the springs though? Would the 140#s be alright or should I go with something different?
 
There's no reason for you to go with 140s with the XP cam 90s or 105s are perfectly fine.

Stock pushrods and lifters are fine.
 
^ What that guy said.

I've got a very similar cam to the XP, albeit mine has more lift and very similar durations, and I went with Crow Cams 105's, new retainers and new seals. Reused my pushrods and lifters, and haven't had any issues.
(this is also done on a new stock timing chain and damper)
 
alright, sweet. now, a few of you said not to do downpipe and Power log.why should I just go straight for headers?
 






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