I'm sadly going to store my 69 soon and wanted your opinion.When storing the car in the past I'd start it once a month and let it warm up.Recently I've read that this will introduce moisture into the system which is bad.This year I won't start it every month, but is it a good idea to crank it just to take the load off the valve springs occasionally?Thanks in advance for your remarks,John.
Sta-bil is a good idea but just add it to the tank then run the engine to get it into the carb and leave it. This works just fine and I live 2 hours north of Green Bay, can get -20 without windchill here. Connect the battery in the spring and go.
The down side to letting it sit 6 months without running it is compressed valve springs. These springs have a memory. The compressed springs loose seat pressure if compressed over a long period of time. I think the lesser of two evils is to start the engine once a month and run it to operating temp. The new synthetic oils do a petty good job for wear on start up. But then again you could always back the rockers off until spring.
Just my opinion.