suspension choices

[hsdropout]

I am getting ready to fit up the 350/TH350 to new tube crossmembers.........
I have been told to keep dist. about 3/4" off front of firewall (to allow adjusting it) and set motor 2 degrees motor "nose up". I assume that is 2 degrees of a level frame? Center up everything but don't have drive line perfectly in-line horizontally with tranny, apparently the u-joint need that bit of angle to wear properly? [I]Any input very much appreciated.
Also starting to think about suspension upgrades. Want to keep the straight axle and go with front disc brakes and mono-leafs all around. The vendor has a kit that includes proper length shocks and lowers front about 3" and rear about 4" (since stock sat a bit high in back).
My question is, does this cause any interference with front steering? and, anybody have this set up and wish they had done differently? I am not really looking for sports car handling, just a decent ride with a little lower than stock ride stance.
Once I get motor/tranny mount located, I'm taking of the cab to clean up the chassis. I have the front fender, hood, etc. off and ready to get blasted & primed. Thanks, (I posted in newmember area yesterday) :J