I have to confess - I measured the part three times and still cut short on one side. Guys secure your fiberglass parts good. Tape them good, do keeper clecos whatever it takes to prevent this. Somehow the Holy Cowl misaligned and I ended with this. Can I grow it back? If yes, any tips? Bob already suggested to buy new cowling and Tom recommended to start new thread because of common mistake. I saw somewhere a builder added safely about 1/8 but I have almost 3/16th gap. It is not all over the cowl, just about 11 inches long then it gradually decreases to zero.