hi, i use the R1 setup on my oldtimer with 1600 engine. when i driving about 130 km/h for a little while my AFR gauge goes to max value (19). close the throttle for a little while and it goes back to normal. Seems that my carbs get little fuel and they are sucked dry. I use a universal 0,3 bar pump, does somebody know how much fuel the pump should give (ltr/hr) or what the original R1 pump gives ?
 
thanks !