ironman_gq wrotesounds like you have a lean spot in your fuel curve. You probably have to play around with the jetting on the main circuit.
as for the starting. try using a ported vacuum source on the dizzy and back out some timing or try a different starter. also try to richen the idle circuit a half turn.
When it hiccupps as you mash the throttle is probably caused by the accelerator pump being too lean and your getting a flat spot. Is this carb new or used. I had similar problems with a Holley and most of them were caused by dirty fuel circuits. Try cleaning the carb pay special attention to the metering holes inside the metering block and main body.
Hope this helps some. :-| always chasing gramlins:tongue2:
Carb was bought new, I had been using Edlebrock carbs, which acted very similar to the Holley, the reason I changed was that on extreme angles the Edlebrocks sucked, Even the supposed "Off Road " carb, when I would stand the rig on its nose would stall and become a bear to restart, The holley is darn near like having fuel injection, I can count on one hand the times it has stalled, even when it stalled it starts right back up.
I have a kit from Holley with different springs, jets, valves etc, etc, I just didnt think it was a Carb problem, so I havent fiddled with it yet.
I already have the dizzy hooked to a Ported vacuum sorce. As one of the board has already sugested, I may try one of the HEI distributors sold here and see if that allieviates some of my problem. Thanks to all for the help, many good sugestions.