I can relate to you 455, last night I decided to take my '84Z28 IROC clone out for a ride(had'nt driven it in a couple a weeks). So I run it through a few cloverleaf intersections and then go to a nearby industrial section for a few drag strip style passes. The first pass it feels real good,the 3:42 posi fed 245/50s spin just a little and hook, trans shifts at 4 grand and I hear the nice stereo bark as both tires get rubber, again the trans shifts at 4 grand and i wind up through 3rd. Just about the time I hit 4 grand the engine dies! Ah CRAP! I coast to a stop wondering WTF? Try to crank the engine thinking "could'nt have broke nothin, did not hear any unusual noises" finally engine starts but dies right away. Well it could not have jumped time, so I continue to try to start and it keeps quit'n. Finally, after about 5 mins it stays running, barely, and I limp home apprx 3 miles happy that I dont have to push or tow the car.
I run a diagnostic and determine the MAP sensor crapped out (brand new by the way, sorry assed new parts!) now it lives again. I just wish you could buy decent parts it seems that a lot of new electronic parts are crap nowadays as well as all rebuilt parts! (just rebuilt the rebuilt altenator I put on this car last year and replaced the rebuilt starter I put on it last winter!)
CAR PARTS SUCK THESE DAYS!!!!!!!!