09-22-2007, 10:52 PM
yes the extra shim will tame it down by reducing the compression and keep the motor from predetonation in warm weather.and sonny is not the expert on os motors. and how many motors have you blown? when you can run a motor for two years ill listenmash:
MUGEN SEIKI
GRAVEY GRAFFIX
LEISURE HOURS
GRAVEY GRAFFIX
LEISURE HOURS