On days below 60 degrees it would take about 15 minutes putzing around at low rpms before I could go. Probably just needed the air vent solenoid, but if I gotta pull the carb might as well go all out. Oiwa just wanted to check my VIN to make sure I was getting the right stuff. Delivery came quickly and the truck is running beautifully now. Next on the list will be the distributor cap and rotor. No problem there yet, but it is a 30 year old truck.