I have 2 bikes with a Franco Morini M01 engine, a Scorpion SC-1 and an Itavelo Lloyds. Both intakes point the SHA 14:12 to the right side of the motor.
That seems fine on the Scorpion since the petcock comes out of the bottom of the frame, but the petcock on the Lloyds comes out of the left side of the tank. This forces you to run your fuel line and/or filter across the hot cylinder.
Yes, of course you can take precautions so the line doesn't touch anything hot, but can the intake be installed so the carburator aims left?
Also, when it's on the right side, it's hard to take the banjo off without loosening the carb from the intake.