RE: Big block conversion
That engine is going to have so much power that it will be Overwhelming!
If you've got some Huge rims/tires laying around (like whats on the MXT-2S), you might want to mount them up.
It will help to increase the Overall gear ratio, and MAY make it a bit more Driveable......
P.S....I suggest the MXT-2S tires /rims, beacause the have a 12mm hex, just like YOUR truck....