I have good strong spark. Ripped the new carb apart (it's obviously clean as a whistle as it's never really been used) and compared it to the old one.
The only variation that I found was that the inlet where the stem of the vacuum diaphragm inserts in fuel pump on the old one is "springy". On the new one it is not. I'm thinking that it might affect the flow of fuel when it's calling for more gas under vacuum.
If so, I might just need to buy a new carb as ther is no way to replace that piece. It's stamped in...
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