WHITE ON MY DIP STICK

Trying to put some type of timeline together here Wayne...

So you had two issues and i'll assume the water leak is fixed, for now.

As for the no-start...How much run time did you have after the install? Adjusting the carb & timing wouldn't cause this issue. Even though you have spark, i wonder if it's enough to fire the engine? What type of ignition system do you have and is the wiring correct, coil, and properly grounded on your ignition box, if you are using one?