1976 SN starts hard when hot

I have a '76 Southwind with a 351. It had a hesitation when slowly throttling and also has a hesitation when flooring it from idle to full throttle. My mechanic friend looked at it and it was a simple electric choke adjustment. My choke was not opening up at the right time making it run to rich in fuel. This also made it hard to start after hot. We adjusted the choke to where the choke plate opened up at the correct time and it runs like a charm. The elec. choke can be adjusted easily by loosening 3 set screws and turning the plastic choke module. Do it while the engine is on and at running temp. From what I understand, you want the choke plate to be wide open after the engine is at running temp. Every engine is different though, so you might have to tweak it until yours it right. Hope that helps.