96 Cobra, White smoke after heat up

Other than checking for obvious signs of anything burning (exposed wires touching hot metal parts in the engine bay?), it sounds like you need to refill the cooling system properly and burp it accordingly.

Brief overview:

Always refill the cobra engines at the coolant crossover tube (remove 1/4" plug located directly in front of alternator) with the overflow tank cap removed. Drain the radiator (and block if you feel that is necessary). Pour in fresh coolant into the spot where you removed the 1/4" plug.

You will begin to see the overflow tank filling up with coolant. Replace the cap on the overflow when it is full. Continue to fill at the coolant crossover tube location, rev the throttle slightly to get the air bubbles up from the coolant crossover tube. Continue to top it off at the crossover tube and keep eliminating the air bubbles by slightly revving the throttle.

You may need to repeat the burping process (letting engine run with the 1/4" plug removed from the coolant crossover tube) a few times to fully rid the cooling system of any trapped air bubbles.

You'll also want to check the compression of the engine to make sure it's still healthy (and possibly a leakdown test while you're at it). It doesn't sound like a head gasket issue based on what you described, but there should be no reason to smell any "generic burning."

Have you used any solvents or engine cleaners on the engine surfaces recently?

Sounds to me like head gasket.if you have flushed your water thier is a way to test your water now to tell if a head is leaking

Signs of a head-gasket. Does it smell like coolant out the pipes, do a compression test.

When a head gasket blows or a cracked head or block

Get someone to run an exhaust gas check on your cooling system. Most good shops can do this and it is a quick, easy way to find out if you have a direct connection between your combustion chamber and cooling system.

Maybe we all misunderstood white smoke.a water leak into cyl would make white smoke that will linger in a cloud of smoke 30ft from tailpipe.water in the muffler will linger 1ft

Still think you should run an combustion gas check on your cooling system. Quick, easy and may answer some questions for you.