I bought a transmission yesterday from a guy that had an old k5 blazer that was tore up real bad, he said he had a 383 in it so i said lets hear it so he opened the hood and started it, maybe 175 horse if we was lucky with a cold breeze blowing in the air filtter, also i noticed it was a 400 block and the only way to get that is bore the block and run a 350 crank with an over size bore, destroked 377? after i noticed that he told me she runs around 450 horse , then he put it in gear to move the truck and id died and wouldnt start , maybe its from that high 7:1 compression then he told me about when he takes it to the drag strip and puts it in 4 low with the hubs unlocked and shifts 1-3 and then into 4 high and through 1-3 again, said it did 0-60 in 3 seconds and was totally seriuos, i couldnt hardly keep a straight face, everybody has to have a dream though right?