Flypaper 2, The diaphrams are on correctly. I just added a pvc 90 degree fitting to the velocity stack. It should protect the carb from the lower airpressure better than just the velocity stack alone. I think the carb was designed to run with a foam block over it and the Walbro folks have the inlet just about too big for my engine. If the 90 degree elbow does not completely solve it, then I'm going to build a little box with foam over the top to emulate the installation in the chain saw. The crankcase pressure fitting is on the top of the carb because the hole from the crankcase is being used to help hold the carb to the jug. This is something you have to do to the Poulan 46 due to it's carb attachment design as a chain saw. It works well, and I've seen other use it successfully. I have another carb in transit, but I think the elbow should solve my problem. I'll post results tomorrow evening after I get back from the field. Thanks.

fwman1