1993 Chevy Corvette won't start when warm

Hi AUDIE10, Welcome to 2carpros and TY for the donation

Next time it refuses to start when warmed don't wait try to catch it if its fuel or spark related issue do below

Get a starting fluid/ether/better off gas in a spray bottle and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 in away from ground have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor /distributor pick-up coil, ignition control module, ECM, Ignitor camshaft and crankshaft sensors- Note: If it doesn't apply disregard it

I don't think you read my question close enough. I read all the question 3X before I answer paid or not-

I asked where the sensor was that might give me this effect. Or was the timing chain stacking on the gear then when cooled slip back in place.

This will never happen if the timing slipped she won't start it'll probably backfires due to the valve timing being off-When you perform what I gave you it might lead you to a problem with fuel or spark causing it not to start-There's sensors involved in the ignition system, you need to do it