Order the tuning kit if you want, but the easiest thing is to look up the metering rods and jets for the 4.3 v6. Its in a table that comes In the owners manual. Also on edelbrock.com. That's gonna be pretty close. Then just get those parts.
Thing is jegs summit et al add so much darn shipping that you might as well go all in. Don't forget the needle spring kit too.
1966 109 5 door wagon 300Tdi "spermaceti fueled"
1994 RRC LeWiB "ruining the air behind me"
All my troubles are Rover