There is a way to do this with a very simple modification. All you need is a drill with correct size bit and a muffler that is willing to be sacrificed for the cause. Be prepared to empty your wallets for this important information.Does putting a spark plug in the exhaust really allow you to light the fumes? Or is the exhaust not rich enough?
I think by what Russ ment about the wallets is he wants us to pay him for him to tell us how to make a flame thrower exaust.