Hi everyone. Been a bit since I posted or tried searching the site. I can't get the search to work logged in or not, but I'm looking to get a CAM. I have ported heads that I ported and have been redone by my machinist. The car will be a mostly daily driver. I'm also planning on a 2,000 mile trip in the future.

I know people run the XP and S1X daily, but what about the XPZ. ZZP says 130lb exhaust and 150lb intake springs are needed plus a double roller chain. Do the springs or lifters wear out after a year or two? Are the comp cams lifters needed? Heard they have issues and are noisy.

I'll be running a M112 once the motor is broke in so figure that should make up for any loss with the XPZ drive ability and provide plenty to feed it. I was also trying to not have the car ridiculously loud but plan to quiet it down with a long resonator along with whatever exhaust I run. This will be run on my 98 Regal GS currently with stock exhaust. I have SLP and a new set of speed daddy headers on hand to choose from for the build.