Issues wityh 66 I6 starting

[BrianTom]

Hello,

My 66 C10 with an inline 6 (250, maybe) will crank, but it won't start. It sat for 10+years because of a fuel issue. I've replaced all the fuel lines, the fuel pump (old on was pumping gas into the crank case), and rebuilt the card. I also replaced the coil, spar plugs, and have a new battery. I testing the #1 spark plug wire with a volt meter and it seems like it's getting voltage and while cranking the voltage spikes up and drops as I'd expect.

I've tried to start it, but it seems like it's not doing much on anything it cranks, but its doesn't seem like it's trying to actually start. I can't tell if the it's cranking too slow or maybe timing is off? Blow is a link to the truck cranking...it's a short video, but there are no changes to the sound the last several times I've tried to start it after trouble shooting.

https://www.youtube.com/watch?v=fRUrfUo0mn8

Any constructive thoughts are welcome.

-Brian