What type of fuel do you use?

340doc said

I've been using 93 with 10% ethanol for years. Holley carb. No issues other than a hard hot start once in a while. Sometimes the car will sit for 3 weeks between uses. The E gas evaporates faster though so if your car sits for a bit between uses you most likely will have to crank it a bit to replace the fuel in the carb bowls being your using a mechanical pump. A good idea is to use rubber hose designed for the E gas on your fuel system.

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I experienced the same thing this weekend.
My Duster has been sitting in storage, way too long around 11 months and I had to crank on it for some time to get fuel pressure.
I also starting experiencing hot start issues with the Holley 700 DP carb.
It is frustrating.
I ordered a new street demon carb with the plastic body, I had excellent results with one when they first came out on my old truck, it would start easy hot or cold. I never touched that carb on the three years that I had that carb on the truck. Plus it took care of heat issues the Holley 750 vac secondary carb was having.
I think with the street demon carbs being a new design, they were built around the ethanol fuels.