Quote Originally Posted by topdog View Post
Maybe the mixture of the injector cleaner and the octaine booster together might be doing it???

@ian.... Would the afm make it smokey aswell??
i'd presume any inaccurate readings from the sensors being picked up by your ecu could cause it to run lean or rich causing the smoke. Put your hand over the exhaust, see is it running rich.

Maybe try get a loan of an afm first and try that. Start narrowing it down lad