eldebrock 650 carb tuning

JB in Alabama · #1 (**permalink**) 01-13-2010, 12:39 PM

any pointers?
The idle stays fast (1100rpms) and only drops to 1,000 after warming up!
its a 351 w with a mild at best cam.

*13* · #2 (**permalink**) 01-13-2010, 12:53 PM

I assume you have backed the idle screw out & the carb won't close any further? Or is there another problem? What type of choke are you running? Is it adusted properly?

jhv48 · #3 (**permalink**) 01-13-2010, 01:12 PM

Sounds like the electric choke is to blame. Make sure the choke is fully open after a few minutes of warm up time.

Gaz64 · #4 (**permalink**) 01-13-2010, 01:18 PM

Yes, either the fast idle screw is still on the choke cam or you have a large vacuum leak.

Clois Harlan · #5 (**permalink**) 01-13-2010, 02:16 PM

I once had an Edelbrock on my car and I had the same problem as you. As it turned out my shaft on my butterfly was warped and was causing it to idle fast all the time. Also, I had a problem with the Edelbrock washing down my cylinders after I shut the engine down. I have a Holley now!