I have a 66 mustang with a 200 ci six,automatic that has been upgraded with a mild cam from Comp Cams. One step up from stock.
Having trouble getting it to idle smoothly in drive in the 600 to 700 rpm range. Will idle smooth in drive for
10 to 15 seconds,then begins to stumble as though running on 3 cylinders.Recovers when shifted to neutral.
Have read on line that a hole drilled in the throttle plate will fix this problem allowing more air into the engine.
This info was in regards to guys running 4bbls on V8's with cam upgrades.Could find nothing regarding 6 cyl.engines.
Carb is a holley 1940 and has been rebuilt. I can maintain good idle in drive at 800 to 900 rpm,but that just doesn't seem
right to me. I'm pulling 12 to 13 on a vacuum gauge. Timing at 12 BTDC.
Is this something I could do to lower the idle to 600 to 700 rpm and save wear on my transmission?
Having trouble getting it to idle smoothly in drive in the 600 to 700 rpm range. Will idle smooth in drive for
10 to 15 seconds,then begins to stumble as though running on 3 cylinders.Recovers when shifted to neutral.
Have read on line that a hole drilled in the throttle plate will fix this problem allowing more air into the engine.
This info was in regards to guys running 4bbls on V8's with cam upgrades.Could find nothing regarding 6 cyl.engines.
Carb is a holley 1940 and has been rebuilt. I can maintain good idle in drive at 800 to 900 rpm,but that just doesn't seem
right to me. I'm pulling 12 to 13 on a vacuum gauge. Timing at 12 BTDC.
Is this something I could do to lower the idle to 600 to 700 rpm and save wear on my transmission?