I'm looking for a carb kit for my 1980 mercruiser 140 4 cyl 181 ci has a rochester 2 jet with 17059052 and under that is 248 9 I. The original carb # 1351-7355a1 and the new carb # 1347-818620 1 r2/2gc. Now what I'm getting when I look this all up is carb 18-7608 which looks like my carb but I can't cross refrence to fing the carb kit # . What would be the carb kit that Im looking for. I know I'm over looking some thing.