Has nothing to do with the TBI at all... Blown head gasket boys Good thing I figured it out on the 300 mile trip home(hoping I'd make it the whole way) so I can tear the burb down. Guess I have to tear the motor down now too. Haven't 100% confirmed its a blown head gasket, but shes running pretty hot, no power untill about 5000 RPMs, no torque, fired off a little slow once or twice, plugs look great(color scale wise, this was odd for a blown head gasket). I'll rip the heads off tomorrow and confirm that it is screwed. Approx. 15k on this motor and it eats a head gasket??? that just sucks. My 383 is definetally getting copper head gaskets now.