|badger bob said: (quoted from post at 08:35:10 01/22/13) Ive seen some one do something like that and switch to lp. Bob|
At this point in time after looking carefully at the pictures of the one Gary has & discussing the exact location of the hole with him, I tend to believe badger Bob hit the target with a propane input. Details of inside/outside of Gary's show the hole not between top & bottom of venturi, as suggested by the comment about "drilling through the venturi", but rather above (air flow wise downstream of venturi) the venturi & below the throttle plate.
.....and if LB's did actually have tube into venturi for propane, it wouldn't matter about the vent & bowl pressures as it would using gasoline. Some propane carbs did squirt into the venturi (see FO-20).. This post was edited by JMOR at 19:29:04 01/22/13.