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Original Message
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| RE: carb type |
| By kevin - 04/03/2001 10:07:58 AM; IP 209.240.220.151 |
| Sounds like a Holley 500 cfm 2 bbl, but its been awhile since I last ran one. The mixture control screws are on the sides of the metering body. Lightly turn them in till seated, then back them out 1-1/2 turns. Make sure you have the dwell on the points set correctly and the timing set too. The Idle speed adjustment screw should be barely open and then the mixture screws adjusted last. If it still hesitates, then look for a possible vacuum leak around the base of the carb by spraying a LITTLE starting fluid around it. If it still does it then the accelerator pump diaphram is most likely at fault. Take a paper towel and put in the carb, then work the throttle and watch to see if gas is squirted out. It should be a distinct dual stream. If not then its time for a rebuild possibly. There are unique parts to this carb though, unlike other Holley 2-bbls. when set up right they are great performers. |
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