...have a 1972 Chevy Impala with Origin al motor and stuff. While I am driving the car just dies.. I will be giving it full throttle or just barely sometimes and it cuts off. When im going 50 mph and it dies its like i give it gas and it doesent respond like the accelerater cable isnt hooked up..but it is. I changed the modulater which was bad and it didnt solve the problem i just changed the fuelpump today and it still cuts off...??? I was going down the street with throttle half way to floor and i just decelerate as if i took my foot off the gas but yet im still trying to tap it and it just dies. It starts up after it dies with no probblem.. Anyone PLEASE HELP?? By the way thanks for answering the last question.