Am taking my ’57 Chevy out of storage this month. The engine has only 6,500 original miles and always put away for winter, but I have a front tappet that ticks for 5 minutes when I start up. I believe it is varnish. How much Sea Foam should I put into the oil? How far should I drive before changing the oil? Can I change oil after I return from a 200 mile road trip? Thanks very much as I have always used your product on my other cars with higher mileage.