i'm telling ya man , you won't be dissapointed with that STS on the 8ight... i had my doubts coming from the WS7III , but i gave the engine a shot last year and fell in love with it... i ran thru 3 of them last year... all of them ran 8+ gallons , and really at the price i can afford to exchange them to a new one ...even a sleeve+piston and conrod is only like $100... i haven't had 1 problem with them.