BB TTI 2" header hot start problem

See if it turns over with it coil wire removed when hot. If so,Put a kill switch on the car for the ignition. While cranking the car turn the ignition on. This lets the engine start to turn without the firing holding back.

If the engine doesn't crank when hot with the coil wire off or the ignition turned off you need a larger Positive battery cable.

Same deal as cheap jumper cables if they are to small they won't jump a car with a totally dead battery without letting them on for a while.

Good jumper cables will turn any car over dead battery or no battery instantly

I think the kill switch will fix your problem. Getting it turning then turn the ignition on.