my car sits for 7 months of the year over our winter. when we park it up we back off the rocker gear so all the valves are seated. at restart it's fresh oil with a prime on the pump, change the trans fluid & radiator coolant. every 2nd year we flush the brake fluid. during winter we remove the valve springs & test them, so far we've figured springs are only good for 150 runs when we change retainers n locks as well. we have very few failures & run super consistant. we can tell what our dial in will be just by looking at the barometer.