I am fitting the upper cowl on my -9A. I have the cowl set with the spinner plate 1/8 inch higher than the cowl and the cowl center from left to right. I am having difficulty figuring our how to get the cowl to line up square, parallel, to the spinner plate. Horizontally I have a larger space on the left side (facing forward) then the right when measured at the bottom of the upper cowl; 13/32" on the left, 5/16" on the right. I probably can live with this. However, vertically I have a difference from top to bottom of the top cowl. At the top the gap is 3/32" compared to the measurements above made at the bottom of the top cowl. My concern is that the gap will be significantly larger at the bottom of the lower cowl unless I correct how the upper cowl fits. It appears that the engine is pitched up relative to the way the cowl naturally fits to the firewall. Has anyone experienced this and if so, what is the solution to getting the cowl in vertical alignment?