Are you actually at 11.5/1, or is that what the pistons specs say? Have you verified the chamber size, deck hgt, etc? Lots of people think they have a certain c/r because of the pistons, but because of lots of variables, they're way off, usually lower. (This would be good in your case)

If you're actually there, and you want to go with roller cam, I agree with Pat M, Howard's Cams is great to work with...I have a solid roller from them, custom ground... For the cam, lifters and springs, it was just under 1000.00.....for hyd roller, it might be a little more, depending on lifters. A little pricy, but great increase in power because of the way the cam works.

If you're going with the high compression, the combo isnt right....I would go more cam, single plane intake, more converter with a tranny cooler if you dont already have one. This will be a high revving engine with that short stroke. Build it for high rpm if that's the case. ( But then it's not a street engine) Also, staying with that, the oval port heads are OK, but not the best for high revs..neither is a hydraulic cam. Personally, I would dump the pistons (and the crank) build a 468 or stroke it for a 496. Lower rpms with keep it together longer, be easier on parts and on your wallet. Like Pat said, build it for torque. John