I removed the edelbrock, hot tanked the original cast 305 intake from the dead motor. Installed it with new gaskets, put it all back together and tried again. Same problem. I researched breaking in this engine and standard method is to start it and hold it at 2000 rpm for 25-30 minutes. This is going to drive my neighbors crazy so I am going to do it tomorrow just before lunch when most of them are at work. I will then mess around with the idle mix screws and see if the break in made any major differences.