Holley carb adjustment question:

[jjl4004]

I was wondering if anyone knows what the proper setting should be for an accelerator pump spring (I think that’s what it’s called). You can see what I’m talking about in this link. Page 10, figure 11. I’m talking about the spring/bolt/nut right above the word “screw” in the picture.

http://www.holley.com/data/Products/Technical/199R10219-3.pdf

I’ve got a Holley Street Avenger 770cfm vacuum secondary carb on a 396, 60 over BBC with a somewhat mild cam with 10.4:1 compression. I mostly run it on the streets if that makes any difference. Any suggestions would be appreciated.

[69 L88 Camaro]

Open the throttle fully. Push the pump lever gently to fully compress the diaphram. The gap between the bolt head and lever should be about .015". Might take two or three people. One in car, one pressing lever w/small screwdriver and one making adjustment. I use the return spring to hold the carb at WOT.

[jjl4004]

Thanks, I adjusted it last night and it's running much better. I appreciate the help.