How to adjust choke pull-off on Holley style Summit carb?

[JFetter]

I have a Summit SUM-M08600VS that is acting up. Quite often when starting, it will not start at all. (unless I depress the pedal and hold it that way)

I suspect it is flooding, and think that it's due to lack of air.

Here's my carb:
http://www.summitracing.com/parts/sum-m08600vs

I've read that it's just a holley knockoff.


I have reset the electric choke housing to the 'factory' condition (index marker), but as I understand it, this shouldn't matter anyway. This is a problem during initial startup.

Some old holley guides talk about using a bent paper clip to adjust the "Choke Qualifying adjustment", but I don't think that applies to my carb?? Pic attached.



I'm suspecting vacuum leak or adjustment problem.

Am I on the right track here?

Is there an easy way to check the choke pull-off operation without the engine running? I.E pulling off one of the vacuum hoses and attaching to a vacuum tool?

I'm very new to carbs and sort of learning on my own here.

Thanks!