Yes you will be bumped up to Improved Stock in any real racing event running an aftermarket can. Once you get into Improved Stock it is a whole new game cuz almost anything goes in IM. In "most" stock classes you can get away with any jetting changes, studs, clutching, and gearing. Some will even let you get away with bigger carbs, air box mods, and reeds.
Your best bet is to check the rules and regs of the race you plan on attending, but 9 time out of 10 you won't be alowed to run stock with aftermarket silencer...
Last edited by phazerhater at April 29, 2002, 4:55pm
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