Welcome!
I really love the I-6 in a 250 truck!
Does your truck have New Process gearbox and TC?
We love family projects, and definitely have the old timers and documentation to help!
Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.