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Old 10-21-2004, 09:26 PM
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carb help needed

ALright, I'll be honest, I'm new to the whole carb thing. I'm used to tuning using a palm/laptop for A/F and timing. So the 'simple' carb eludes me.

I know nothing more then it's a Holly. Here's a pic of it.


So, to start with, the car fell flat at anything more then half throttle, and reaked of unburned gas at idle. I checked the plug, and they were so fouled with carbon, I don't know how they fired. I swapped them out, and that seemed to help the idle a bit, but still had the same problem at half. So I adjusted the black knob on the side that had an arrow pointing Clock wise, to more lean. It seemed to do beter, and I got it so it feels pretty strong untill 50-60% and then stops acclerating altogether at %75 and up with some popping.

I assume it's lean, but I'm not sure what is the best way to go about this, and how much of a turn it takes to make a small change. So any help would be apprecated.

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Old 10-21-2004, 09:54 PM
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Start with a rebuild, that thing looks real tired.

BTW you adjusted the choke, its tuned like any other Holley carb.
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Old 10-22-2004, 07:58 AM
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I haven't seen a Holley front bowl like that. What is the List#?

The rich-lean adjustment is a small screw on the side of the front metering block.
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Old 10-22-2004, 09:21 AM
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Quote:
Originally posted by MI2600
I haven't seen a Holley front bowl like that. What is the List#?

The rich-lean adjustment is a small screw on the side of the front metering block.
Where would the list # be? I'll look for that adjustment screw. I'll do a search now and give you what numbers are where.

The list # is 8060-1, and below that is stamped 0717. I'm searching for info on it now.

Okay, it's a 650 CFM carb. Not really sure how to tune it or deal with the specific issues I have.

Last edited by sleepr; 10-22-2004 at 09:19 AM.
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