Add a flange, drill & tap the exhaust manifold, put a lil weedwacker plug in there w/another coil & a switch & when the engine is warmed up - rev it a bit with the choke partially on and hit the switch = instant flames out the pipe
I haven't the slightest idea if that would work w/our lil HTs & I bet the system hasn't enough juice to run another ignition system in any case, but it's a not uncommon trick amongst the hotrodders & their old school V8s. Buddy o'mine had a seriously worked 'rod with that setup and it'd shoot 6-8' flames on average... which was frankly terrifying for everyone other than him lol
...tho, come to think on it 2door's 2 door is beggin' for it methunks