Bill,
You're engine looks great! I was trying to figure out your routing for the intake heat. It looks like you have a Langdon spacer behind the thermo.housing. Is the routing from the heater hose outlet on the water pump to the intake and back to the thermo housing spacer? Do you have the heater hooked up also? I'm still formulating a plan on building my 40 and you guys are a big help. When I built my 50 a few years ago, I was going to put a 6 in it and chickened out and went with a V8 because it was easier and cheaper. I'm going with the 6 this time, but not the 216 that's in it.
Thanks,
Roy