I ran this engine for one race season and it has like 2 1/2 gallons through it. It's starting to shut off after I bring the car in and it idles for like 1 to 3 secs. has a littl pinch you can feel. Plenty of Bottom end and top end is still present in the engine. I must admit I probably ran it to lean in the first season as I was new to Novarossi engines. Is it worth the rebuild or should I just buy a new engine? I tried raising the idle and richening lsn which worked for awhile while and the engine was idling kind of high but after a 20 min run (refueled of course) I stop the car and it shut off again. Brand new clutch was just installed as well. Any insight fellas