You know Dan, I'm going to have to take her out again to answer that question. I can't remember exactly how she ran when it got squishy or whether it made her run better or not when I would pump it up while underway. But first, I'm going to check for leaks forward of the fuel pump as you suggested.
As far as the carb goes, I was affraid it was gummed up because I left fuel in it over the winter, so I already disassembled it, but put it back together when I discovered the original hole in my fuel line. I did not do a deep soaking and replace the gaskets, but instead, did a surface cleaning and blew her out with compressed air and then reassembled it to test if the air leak was causing the problem. And it was causing the major problem (not going over 5mph). So, I reused the gaskets I had, but that somehow seems wrong to me. I have done enough automotive tinkering in my teen years (intake manifolds, valve covers, quadrajunk carb swaps, the usual stuff) to remember you always want fresh gaskets. I think, since I had it apart, it should get new gaskets to make sure everything is sealed properly. And since I'm going to give her new gaskets, I might as well give her a good soak and a good cleaning before I put her back together the final time to make sure that a sticky valve or a clogged slow speed jet isn't contributing to my warm up problems as well.
I'll let you know how things progress.