VERY hard to start after the car sits for a day or more.

Icetech said

Easy test for the evap theory (which i don't buy.. mine sits for weeks and fires right up) Let it sit for a day or 2 and take off the air cleaner and pump the carb.. see gas squirt? then it's not evaporating..

When cold is your choke closing all the way? With my car it's 1 pump and it fires almost instantly (newer carb with electric choke), Even my big block cars without a choke were 2 pumps then crank.

Also, are you sure your accellerator pump is working ok? plenty of squirt when you test it? That would cause your issue...

Hard starts are a pet peeve of mine.. can't deal with it :)

Click to expand...

Evaporation has a lot to do with the fuel quality. I buy the non ethanol premium at the same place for my old cars. I filled up before heading to MITP and turned around after I developed a bad surge. No issues until I filled up. Talked to a friend that buys his gas at the same place and he and half a dozen friends had experienced fuel issues the same time as I did. Sometimes mine will start up easily after setting and other times I have to crank on it a while. The only thing that changes is the fuel in the tank. We can't diagnose the OP's issue over the internet. We can only speculate what it may be from what we have experienced with our own cars. Kwik Star used to have 93 non ethanol. Now their 91 is crap. There is a privately owned Phillips 66 station nearby that has premium. I need to try theirs.