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#3
06-21-2002, 07:06 PM
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Re: Hesitating Holley
Your explanation is correct, the acc. pump is a mechanical delivery of fuel until the vacuum signaled fuel shows up. I'll reset the gap at 0 and see what I have. My hunch is that the duration of the fuel from the shooter is too short, thereby requiring a smaller diameter shooter to 'lengthen' the jet stream.
In the book I have on Holley's, it says: 'This function - mechanical injection - is most important when the carburetor is somewhat higher in capacity than ideal for the application, or with a double-pumper type carburetor using mechanical secondaries.' I know that my stock 780cfm Holley is much too large for the LT1, but I don't understand why that makes the acc. pump circuit more critical. Any ideas? The most frustrating part is that the carb ran excellent before I sent it out over the winter to get 'concoursed' [img]/ubbthreads/images/icons/confused.gif[/img] [img]/ubbthreads/images/icons/mad.gif[/img] [img]/ubbthreads/images/icons/confused.gif[/img] [img]/ubbthreads/images/icons/frown.gif[/img]
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Marlin 70 Yenko Nova-350/360, 4speed M21, 4.10 Posi (Daddy's Ride) 69 SS Nova-396/375hp, 4speed M20, 3.55 Posi (Benjamin's Ride) 67 RS Camaro-327/250hp, 2speed Glide, & 3.08 Open (Danny's Ride) 
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