Thanks for your assistance. I did get them apart with a lot of soft taps on a flat blade screwdriver. The screw driver was placed against the carbs at the joint held together by the bolts and dowels. The is a little exposed ridge on one joint and a ridge with identification numbers on the other. It took two people, one holding the cards and one tapping, alternating between the joints. Long slow process. But it is all back together now. Running strong and no gas leaks.
