Jsmokey

OK, got a good 4 bolt main short block finally and I need some opinions. First off I picked up a comp cams .543 lift solid lifter cam, 265 DURATION - NUMBERS ON CAM ARE 5109/606 FT6+4 K5330-07. Can anyone give me some more info on this cam? Would comp cams be able to help me out? Next, what kind of compression ratio can I expect with the factory flat tops and 76cc heads? I know this is pretty low for this can but till I can afford some dome tops this is what I have. Last one I have for now is what would be a good affordable set of springs I can pick up that will fit factory heads? Just as an fyi, I'll be running a hurricane single plane a worked over Holley 4160, headman long tubes, and 4.10 gears, hei ignition, ported factory 1.94 heads, on 93 octane. What kind of power can I expect.