ALright all it seems I am plagued with weird issues. Yesterday I took my car to a charity car show. When I arrived my car started idling a bit rough no biggie sometimes it does it when the air is on. I shut her down registered and drove it to my spot. When I was backing in it started to die. Like it was starving for gas. Well the day went on and I just sat there shoot the poop like normal. When I went to leave. Damn thing would not idle. It was missing bad. This is the odd part when I reved it above 2.5k no problems and the missing disappeared.
Got home start checking.
I can pull 2 3 5 8 wires off with no idle change 1 4 6 7 it almost dies.
I can screw in the right idle screw all the way in with no change. Very little change all the way out.
If I unplug any vacuumed item, such as pvc, or trans mod leak causes car to die.
Changed carburetor from edlebrock to holey same problem.
Check timing gap on breakerless pickup. fine .010 - normal
Timing at 8 degrees. - normal
vacuum is barely 10 in when its normally 19.
checked for vacuum leaks around manifold and carb.
Check plugs all looked good but 8 and 6 they had major carbon deposits. I changed them and noting changed.
If idle is held above 2250 it smooths. at freeway speeds no missing or surges. anything below 2200 it hesitates both carbs. holley works fine on 68.
I find it funny its all the same venturi on the carburetor. The only issue is I changed the carb.
Oh and I changed coils, resistors, and primary wires.
What could it be.
Got home start checking.
I can pull 2 3 5 8 wires off with no idle change 1 4 6 7 it almost dies.
I can screw in the right idle screw all the way in with no change. Very little change all the way out.
If I unplug any vacuumed item, such as pvc, or trans mod leak causes car to die.
Changed carburetor from edlebrock to holey same problem.
Check timing gap on breakerless pickup. fine .010 - normal
Timing at 8 degrees. - normal
vacuum is barely 10 in when its normally 19.
checked for vacuum leaks around manifold and carb.
Check plugs all looked good but 8 and 6 they had major carbon deposits. I changed them and noting changed.
If idle is held above 2250 it smooths. at freeway speeds no missing or surges. anything below 2200 it hesitates both carbs. holley works fine on 68.
I find it funny its all the same venturi on the carburetor. The only issue is I changed the carb.
Oh and I changed coils, resistors, and primary wires.
What could it be.