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I'm hoping someone could help me out here. I'm new to the group.

I have a 1915 that's been running great for years with 40/44 kadrons with 55/135 jets. I was chasing a small mouse that I thought may be an intake leak so I overtightened one of the carbs bending it and causing a big leak.

In a rush, I ordered the new 44's that were on sale and unreturnable. Long story short, I can't get them lean enough to run on my engine.

Is the only thing different on this carb the diameter of the throttle body? can I use my 40 throttle bodies and get back to whee I was?

I tried a bunch on combos and can't get it running well enough and hoping to not have to buy a new set of 40/44's.

Any help?

I'm curious myself as I have never even seen the bigger ones in person. As you noticed they are extremely simple to take apart, just keep calm. If the gaskets don't deform or tear/break I have no issues with no kit cleanups.

Myself I would try the 40 tops on the "new" 44 bottoms but wouldn't expect drive ability to be quite as good as it was.