to beat a GM 602 crate

I ran a modified for several years. Always Mopar run a hobby stock now also a mopar. You really need to start with a more modern chassieno more than 10 years old to be somewhat competitive. You need to read the rules and build your motor to the best advantage of the rules. Is there a compression limit can you port heads headers what intake . My A mod that I last raced. 2006.. and won features with. Was powered by a 360 LA ported 587 heads Hughes 5056 can single plane intake and headers. If I geared it to max out around6500 it would last all season and just need new valve springs for the next season ran that motor 5 years against some very stout 400+did thefts and beat them. Its more about car setup and reliability than max power.