have to close choke plate?? to keep car running-why??

Thanks everyone! Im going to try the vacuum leak stuff first. Im leaning towards the jets or something having dirt or bad gas. I may pull the top off the carb and see whats going on. It did sit for about 6 months or so. I looked at it some last night and looks like the right side has some white stuff or?? on the inside. coming out of a hole there. I sprayed carb cleaner there, but it needs brushed or something.
Im going to put my 340 intake and hpTQ on after I get that(TQ) carb rebuilt. I just needed to get this running until then- which will be a little while yet, so I can move it and etc.