Holley Carb adjustment question

Its a holley 600 cfm with vacuum secondary. Performer intake. The only
adjustment screws I see are for the idle and there is one screw on each side
of the metering block up front. Idles fine but stumbles when you get into
the throttle. Squirters are working fine.

"HAND JOB" > wrote in message
...
> Its a holley 600 cfm with vacuum secondary. Performer intake. The only
> adjustment screws I see are for the idle and there is one screw on each
side
> of the metering block up front. Idles fine but stumbles when you get into
> the throttle. Squirters are working fine.

Your intake manifold could be blocked with crud. I had hesitating and
stalling when cold problems until I ran it on the bottle for half an hour
and used carb cleaner on everything else. It responds a lot better now...

The exhaust doesn't come out black and sooty anymore either...

-'dreas

"HAND JOB" > wrote in message
...
> Its a holley 600 cfm with vacuum secondary. Performer intake. The only
> adjustment screws I see are for the idle and there is one screw on each
side
> of the metering block up front. Idles fine but stumbles when you get into
> the throttle. Squirters are working fine.

Specifics, please? Motor, year, make, etc. There are many different sized
squirters available and there are different accelerator pump cams ... maybe
you're getting too much too early, or not enough, and too little too late?
Those screws are for the idle mixture, btw...

Look at www.holley.com for some info, then come back and help us by giving
us some clues as to what you have, what you've tried, etc.