Junkyard BEAST!

Well, just like the title says, im looking to build a junkyard motor that runs hard...My plans for a stroker have had a sharp curveball thrown at it, and in an effort to just get the car on the road but still have fun, here is what I have to work with...The faster I can go the better (im hoping something like this can see a mid 12, even faster great!:toothy10:).

-91 360 roller block...the bottom end is STONE stock. Bores still have good cross hatch, gonna do a home hone on them. Block will be getting cleaned, new bearings, new rings, stock pistons, rods (not sure if i should upgrade the bolts without resizing the big end...) and crank. no other machine work to keep costs down and block fresh for future stroker plans
-factory heads are cracked, going to go with Brians (IMM) Rhs heads or possibly stock edelbrocks if the springs can take the cam
-Airgap intake manifold with a holley 750HP carb on top
-1-5/8" headers into a 3" borla xr-1 race system (hopefully it will still sound good LOL)

My biggest questions are these

first, how much compression am I looking at with the stock dished pistons down in the hole? trying to figure out what chamber size i should order the RHS in for this build but still be able to use them in a future stroker build. Pump puke will obviously not be a problem (87 baby!:toothy10:). Was thinking Mopar head gasket P4120094 (compressed thickness of .024-.028") to get compression up...anything to be gained by reversing the pistons, or should i not waste my time?

My second question is what cam. This is a factory roller block, factory roller lifters are still good. So, in staying with the theme of max performance out of this, what kind of cam? I know COMP offers a few decent grinds, Lunati just came out with some nice more aggressive roller lobe profiles, etc...Just wondering spec wise what I would be looking at to make the most power while still sounding quite nasty and running pump gas i.e. dur at .50, lift, lsa, etc..

All of this in my 3200lb scamp with 4.10's in a dana, a 4 speed, and caltracs with an e/t street...im really hoping a mid 12, should still be a blast and should put a smile on my face for how cheap it was lol

sooo, what say ya'll???? I need to hear suggestions, this is a totally new game that i have no idea where to start with:toothy10: searching the word junkyard on here didnt help so much lol