I have an 84 camaro stock 305/carb set up and I have noticed its taking me 3-4 turnover's before the engine cranks in the morning. I usually pump the gas 2-3 times and it will usually fire up than die immediately. I will than have to pump it again and turn it over and repeat until it finally cranks. Anyone have any thoughts on what could be causing the hard starts? Choke is sealed and cannot be adjusted. Thanks