Hi guys. Have a 468 that flattenend a lobe and Im upgrading now. I'm going to up compression to run this cam I have on the shelf. How far should I go? Crower 01486 its 260-270 at .050 and 649- 677 lift on a 107 lsa. Crower says 11-11.5 would work. Car is a street strip deal, 80 malibu, th400 trans, 4.10 rear gear, 28" tire. I have two sets of heads now, 083 closed chamber ovals and 781 ovals unported. Should I use them or buy a set of aluminum heads? Oval or rectangle? I cant afford a 3k set of heads right now so I need to keep somewhat budget minded. What head should I be looking for either new or used? I want a solid mid ten second time slip(or better) on either pump, race or e85. Car will be trailered and street driven some but more of a friday/saturday night type car only. OH what kind of HP does it take to run mid tens at 32-3300lbs? Thanks in advance for the help!