Since the lower L front engine mount that attaches to black steel plate was not tightenned properly, I used a jack to help position it in place and tightened. Replaced top forward fuselage skin so that cowl alignment will be more accurate and replaced wooden spacer disk on prop flange. Removed bottom oil cooler elbow which will need to be shortened toclear cowling. Also took Rick's suggestion to loosen distributer on front top of engine as the top cowl was hitting the plug wires as the bracket raises them slightly too high. The bracket can be modified after the cowl is fitted in place.