Not Ranked
Great advice, guys. If you do the gas cap test, take a spare ignition coil with you. Be sure to try to start the car right away if you hear air venting into the tank when you crak the cap. If it still won't start, swap the coil out and try again. If you're running an MSD box, you could try swapping that out, too. If all of that fails, look for a hot spot on your fuel supply line.
If the car used to run fine all the time, I'd lean toward some kind of electrical (ignition) issue. If it's always run like that, I'd bet on fuel delivery problems. There's an answer somewhere for you. Someone will come up with the solution, I'm sure. These guys always do!!!
What kind of fuel pump/plumbing are you running? Mechanical pump? Electric (in-tank or external)? Dead head system, or return-style?
Eric
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