Questioni have a 67 big block vette.the car had wrong head gaskets,it ran to hot. i changed them and it solved the problem. i had the car out for an hour and it ran great,and then all of asudden it would not hold an idle. i have tried everything possible to fix it,no good, email me or phone me 4128350433,i need help!!!!
AnswerJimmy, I can't e mail you without your address. Mine is
[email protected] Those are L's at the end of my name.
Check the torque of you head bolts and make sure they are still tight. A small vacuum leak in the intake area will cause you to loose idle and it will run good under load and higher speed. Look for a cracked intake manifold, a bad gasket, or some other place air can get into the idle air stream. Spray the area with carb cleaner or wd-40 while it is running. If it clears up. you have found the leak. Now don't cause a fire when you are doing this. Be carefull.
E mail me with what you find.
jack