serious ignition problem?

Okay, this is drivings me crazy. My car starts up fine every morning, but if I go for a short trip, say 5 minutes away, and try to start it up again, it won't start. I let the car sit for a while before attempting again, and then it might or might not fire up. I repeat this process till it does start. The ignition rotates, butit just won't fire up. My car also occasionally dies on me out of the blue when I'n driving along and I have to go throught this process again. My fuel pressure is at 32 psi at idle, max 40 psi when I punch it, and the hold pressure is around 30 psi when I try to start up. I've changed the ignition module already and my mods include headers, h-pipes, exhaust, pulleys K&N filter system, MSD blaster coil and wires. This only happens on short trips, when I drive for 15 minutes or more, I don't notice this happening, but the car may cut out. If anybody has had this problem or has any idea, please let me know. I'd like to make it home without problems for once. Any suggestions would be appreciated, thanks.




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95 gt. BBK headers, heddman h-pipes, flows, 3.73 gears, b&m shifter, eibach springs, svo subframes, energy bushings, march pulleys, k&n filtercharger kit, msd blaster coil and wires.