I know alot of people say go to a dyno but since I don't have time nor money just have to go off of what works for everyone else. I've seen some people post about the 590 mopar cam. My friend had this one cam that was like in the 570's that was a mopar cam and used to run his 383 for years at 7900 rpm and ran in the mid 10's. I was just wondering if these cams are really suitable for 7500-7900 rpm area under the right combo? Also was wondering maybe instead of going like a big 630 plus lift and just take a smaller cam like the 590 or smaller and adding the 1.6's roller rockers. I guess this combo work's out real nice from what I've seen, heard and read!I am also wanting to squeez more compression out. Is it worth buying special head gaskets to get another half a point of compression? or maybe just to some of us it is..