Starter woes

Sorry no bench test yet guys. I work during the week and am too tired to head out to the garage at night (getting old). It won't be until the weekend so cool your jets eh? ;-) The article in post #14 from @furrystump has me thinking though. The only thing we changed this winter was to add bigger fuel lines and, in the process, an electric fuel pump. I'm now wondering if there is a voltage drop problem. That wouldn't show up on a bench test because I'm connecting directly to the battery via booster cables, nothing else in circuit. Again, you'll all have to wait until the weekend though, sorry guys. Thanks for all the advice and support though, that's why I keep coming back here when I run into a challenge.