Just got my engine back from builder was trying to fit carb hat on autolite 2100 there is almost a quarter in gap need some advise on how to fit im sure its a easy fix but im not sure what it is I was thinking of trimming the top of the carb but was afraid that might change the way the carb works the only other things I can think of is adding gaskets to make up difference by the way inlines carb hat is great got the fully pollished one beautifull piece