Even still I would get a cheap air/fuel meter/guage installed as these engines have a tendancy to blow the factory pistons when it gets too lean....
Already have a Autometer A/F ratio which dosen't read lean at the moment but that dosen't mean it not running very close to 100% duty cycle.
Another thing I hadn't mentioned was it dose already have ross racing forged pistons, gapless rings, o-ringed and a cleaned up head. I proberly should have explain this from the start, sorry .