I recently converted my Holley 660DP to an electric choke and had zero difficulties. Didn't have to make any mods. I am not aware of a different electric choke conversion for Holley carbs.
Yes, the 660 style is easy. Vacuum secondaries right? Different carb. I've installed these kits before and there's not much to it. I'm looking for experience with mechanical secondaries only.
Generally, performance models, i.e., mechanical secondaries, use the manual choke.
Picture of interference?
Thanks Everett. The manual choke is what I was afraid of. I don't want manual. I might modify the housing on this one. It only hits by a small amount. Here are a couple of pics. I would have posted them before, but Flickr doesn't have the right option to share pics with their android app... I had to boot up my laptop.
Better to have too many pics than not enough right? lol...
1st thing, here are a couple of pics before and after I recon'd my carb. Evaporust is great.
Finally, here are the issues.
Vacuum tube removed. To be plugged.
Secondaries idle position. Notice relation to the brass fittings threads.
Secondaries opened all the way.
Here you can see what is happening. The butterflies aren't quite open all the way.
Any reason you can see for not cutting off the vent before the threads? I've never seen that part used anyhow. All I'll need to do is put a small piece of filter in where I cut it off. It's part of a PCV style system. I have to hook it up to a vacuum source because it's not a vacuum secondary carb.