From a Volvo Service manual. The carbs spec, but no carb kit number, yet
4.3GL-A Models
Volvo Penta #3858330 500 CFM Model 2300-2V
Pump Lever Clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.010-0.015 in. (0,254-0,381 mm)
Choke Unloader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/8 in. (9,525 mm) Measured Lower Edge of Plate
Choke Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Notches Lean
Initial Idle Mixture Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5/8 Turn Off Seat
Main Jet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Power Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5
Float Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parallel to Fuel Bowl When Bowl Inverted
Choke Vacuum Qualification . . . . . . . . . . . . . . . . . . . 0.250 in. (6,35 mm) Measured At Lower Edge of Plate
Pump Cam Position (red cam) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1 Hole of Cam and Throttle Arm
edit: Volvo Penta parts website doesn't allow non US IP addresses to access. So I couldn't get the carb overhaul kit number from Volvo
Holley website shows Renew Kit 703-30, for all their 2bbl marine carbs
