high Idle 318

In the photos i dont see the thick base gasket. If this is the case,that is your problem.
I disagree ( but I see where you were going), I do not have the thick base gasket and my car starts and runs fine even in COLD Colorado weather. two pumps on the gas after a week of sitting and it starts right up and idles fine at fast idle. then after a few minutes everything warms up and it idles at normal idle.