I am having a little problem.......I have a GO 5 port with 2.5 gallons max..It idels good and has good bottom,but runs super hot and doesn`t rev out and reach top speed.....I have kinda had nothing but problems with it after the first gallon..I had to replace the carb and now this....Could it possibly be a air leak...OH and I have good trail of smoke,I just can`t figure why its running hot and not reving.Over 300

Thanks in advance