Hi, been having issue of overheating, ok driving but around town and sitting still, temp rises up over 200 deg. I usually put in neutral and rev engine up a little to cool back down.. heres what I have, 68 firebird, 350 engine recently rebuilt, maybe a couple of thousand on engine now. slight cam, and intake edlebrock ,match, new 3 core radiator and water pump, new clutch fan, upgraded fan to 21 inch I believe.. have a shroud on but thinking of replacing, not a great fit... a friend told me about a plastic fan the dragracers use, and get rid of the clutch.. any other good info you like or that workks good.. thanks