RE: I need help with my tc3 with a turbo nova rosi .12 motor
Yeah sounds lean, many things, like guys said, I'd replace fuel tubing, clean carby make sure no blokages, check head is screwed down tight not leaking air, but I,d say its your mid range either being to lean or rich. Once it is set DONT touch it, just your top end needle. So do all thorse checks and retune the mid range and you will be sweet. Cuz the nova is a great engine, fast and very reliable when properly tuned.
Keep rockin
Maverick