Suggestions for the Best Comp Ratio, Pistons & Cam for Street 340

Thanks for all the excellent suggestions. I also talked with Mancini and Laysons.

Taking all comments into account, I am leaning toward the original Mopar Performance stock cam P4452782- AD- 268/276 and Lift- 429/444, RPM Range- Idle to 5,800. This may be a better fit with the fact that I will keep the iron intake, iron heads, stock exhaust and the original AVS, and not installing aftermarket aluminum equipment.
Also I lost sight of the fact that I may try to run in Pure Stock Drags just to see what a mostly original 340 will turn (although you can have a slightly larger cam).
It also appears that this cam was stock on lower compression 72 and 73 340s.
The guy at Mancinis also suggested that P4452761- AD- 268/272 and Lift- 450/455, RPM Range- 1,500 – 5,800 could work well with the reduced compression. How would driveablilty and torque be affected by the difference between the difference in the lower RPM Range rating between the 2 cams i.e. Idle vs 1,500?
Also does anybody know who makes full floating pistons (.030 over) that could drop the compression to the 9 – 9.5 : 1 range? I am planning on using Eagle SIR I-Beam Rods 6123CB. The machine shop said the head chamber is currently 71CCs, but may drop to 70CC when the block is decked. They ordered Sealed Power Cast Pistons, 428P, but the Summit Site says they are Press-fit, not bushed for full floating.

Thanks again for your input.