Anyone Runnin a NEW Yamaha 150 V-Max on a Current Sabre or Sabre FTD????

Hello Guys, Im working with a client who is as we speak serving us over in Afganhistan. BCB is currently offering a Deal on NEW Yamaha 150 Vmax carb motors with a 2010 Sabre FTD. I know its a reliable motor, I know it uses more gas and oil than a Opti or Etec, but if owners or BCB could post some #s, actual estimates on the approximate MPG, hes building this boat with a budget, yet rather would have some killer options Vs. a 25% fuel economy gain with the DFI motor. We spoke today via email and he is really chompin at the bit, Im going to work on a 150 Pro XS also, yet I think our budget will be gone. Thanks for your help guys. Brannon