run a 87 indy 600 in 1000ft. ice speedruns. still has the stock gearing (21-35). want to try a 22 gear on top. is this going to affect anything else, such as RPM'S, or shift out or anything else.?? sled makes best power at 96-9800 rpm's. will i need to go to a different spring.?? (blue polaris in it now) any help guys??