Ok, my nova has the 350 small block V8 in it, and it's very tired. I already replaced all the fouled out spark plugs with new ones... it temporarily fixed my issue. Then I get on the highway, and full-throttle it, and it dies. Just fall flat on it's face till I slow to about 30 again, and slowly starts
chugging along... what gives? Any suggestions, tips, or clues as to what it might be would be ...