WHAT DO U HAVE TO DO TO MAKE FLAMES COME OUT THE EXHAUST... I KNOW THIS IS OFF TOPIC BUT JUST CURIOUS

A manual choke control (open it up real rich) and one or two (single / dual exhaust) spark plugs threaded into a bung near the end of the exhaust system. The plug, or plugs has to be wired to a seperate coil with a momentary switch. Pull the choke, enrich the exhaust and push the button to discharge a spark to the spark plug. Thats the old school way from my understanding. The new way, there are kits, computer controlled, weld in a bung for a NOS injector, same concept, just new technology and injecting raw fuel thru the NOS injector as opposed to enriching the engine itself. At least thats my understanding.

I have seen kits that use propane. No idea were to get them though.

Way we used to do it in high school was to be rolling, shut the ignition off and pump the gas a few times then turn ignition back on. Would pop loud and kick out a 6' flame. I roasted the emblem off a cop car at a light that way. Was too funny watching it burn off the door. Cop wasnt impressed, but couldnt cite me for anything either.

I remember this trick I melted the rubber off my neighbors bumper (paid for a new bumper) DUH!
JHunter has it right.

i dont HAVE A MANUAL CHOKE I DONT THINK...MINE IS AUTOMATIC