I have an interesting challenge for you guys. My Dad has a 1980 Corvette with a 350 and a 4 speed. He wants more power out of it, but there are two catches that make it a challenge; he does not want the compression ratio bumped at all (currently has 8.5 to 1, and runs on cheap gas). And he does not want the stock external appearance changed at all, so no headers, or aftermarket intakes. Any suggestions on how we can wake this motor up with those restrictions? Roller cam and lifters? Roller rockers?