Comp Cams XE270HR

Not sure on the spring situation, but you may find the XE270hr-12 a better fit to your combination..I run it with scorpion 1.6's and the computer takes it all in very well..the idle/power curve is excellent for an OTS cam.

The AFR's are almost intake biased in their flow characteristics; a similar XE cam that's less exhaust biased may well work even better.

With a comp XE cam, you ARE changing valve springs end of discussion. Unless its worth potentially toasting a shortblock to save $120? With that said, why cheap out $50 on a shelf cam when you can make more power with a more aggressive custom? You ARE changing springs like I said. If you don't wanna change springs, put a tfs 1 in installed on a 108* centerline.

"My concern is if a 112 L/S cam will idle right in my car?

Also I was looking at the NX264 cam. Is that a better cam as described "

Its the overlap that causes the idle issues (which happens to be a product of vlv specs) and neither XE270-12 or XE270-14 have that much that it would be a concern. As for the NX cam it is even further bias towards exhaust so going by MYs comment it's going in the wrong direction.

I would run the XE270 (XE270-12) of the two Comp cams (comparing to the NX one you listed) but I wouldn't run the AFR stock springs. It's not so much the lift you need to worry about butmore the spring pressure to make sure vlv don't float.