troubleshooting FITech Fuel Injection

I built a 302 V8 for my son's 68 Mustang. I've always dreamed about going the fuel injected route and decided to purchase FiTech's throttle body system including the Force Fuel kit. This kit allows me to utilize my existing fuel tank and fuel pump while providing the necessary fuel pressure to the throttle body.

I have not been able to get the car to run more than a few mins at a time. Using this video as an example of what the cold start process looks like for me. I actually got a trouble code this time - P0505.

FiTech 35203 Master Kit Go Street EFI System Master Kit w/Force Fuel.