The trans and bellhousings are the same, a stock computer will work and clearance may be a problem depending on which motor mounts you run.I'd just get a cowl hood
Was the Mustang running before you put the fuel pump in? on the fuel pump relay you only need one wire to jump the switch. Sounds like a bad computer,do you have an extra computer to try?
You will need Mustang Foxbody351 headers,351 oil pan,351 lower intake,351 fly wheel,and balancer for that year engine. What year engine? and will you be running efi?
Adjustment's are made by adjusting the (3) 5/32 heads on the rear of the light housings.I adjusted mine in the past,I did it on level ground and shining the lights on a wall of a building.I think I was about 20 feet away but I'm not sure