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250 performance mods
heya all -- new here, just got a 250 trailblazer, it needs more HP. I searched for 250 mods and found only a permanent air filter mod -- was wondering if there is any porting / carb mods -- or does thing have reed valves? are aftermarket exhausts worth the money? -- ect. -- anything would be appreciated. I am going to have to tear down the engine as it only has 75 psi of compression, I am sure it should be around 110 or so--- Sooooo, new rings/piston may be needed, but was really curious if anyone has done any port work or anything like that. THANKS IN ADVANCE !!!
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