Disable Electric Choke

[LTZ C20]

My 79 Cheyenne C20 has an Edelbrock 1400 carb, 600 cfm with electric choke. My choke acts funny a lot. I know I have good power and good ground to the choke. It will work when te truck is started cold, but it will also be o. After I've been driving and te truck is hot. I can be in park and it will sit at 1000 rpms, or 750 or so in drive. I can kick it off sometimes and others I have to pop te good and push the choke cam off on the left side of the carb to get it to kick down to idle. I know te manual choke will work if the electric is disabled. So how do I disable the electric part? I have already pulled the positive wire from the terminal but I won't to just remove it completely and just use manual, manual seems to work better and works when I want it to and goes off when I want it to also. So on this carb, can I remove the electric choke mechanism?

[Captkaos]

I am confused, it is either manual or electric how can both on the same truck?

[bake74]

I am confused, it is either manual or electric how can both on the same truck?

     I think he believes since he took off the power wire it is now a manual choke ?  Or he is asking how to remove the electric choke and add a manual choke. 
     I can not be sure, it is not very clear.

[square81]

Had the same problem with my edelbrock too. I adjusted the high idle screw. It was adjusted in too
far in and would stay on one of the steps for the high idle. Backed it off adjusted the base idle and double checked the choke and works good now.

[blazing816]

I had same problem, and I did what 'square81' did, the fast idle screw (kinda hidden) was totally jacked on my truck. It was idling at 3000-3500rpm when on fast idle and would not kick off, adjusting the screw fixed it all, and she starts and runs better then she ever has.