Re: Yamaha R1 carbs on a Pinto.
Thanks for the reply and information. I can now proceed with confidence. I should be OK setting them up because my first love are classic motorbikes and, except for vacuum lifting the Slide and Needle, these appear to work the same as Amal carbs (Pilot Jet/Needle Jet and Needle/Main Jet). However, the jet size and needle position you have suggested as starting points will make this much easier.
Your engine looks gorgeous. Something for me to aspire to in the future.