A couple of conversion questions

[John Larson]

Contemplating a 10VT conversion to either my QSW or a 4KQ I have sitting 
around.  First: I have available an 85 5KT FWD engine, or a 90 5KT 
engine.  Is the 1990 FWD 5KT engine the "good one"?  Next question:  How 
do conversion people deal with the vacuum for the brake booster?  Since 
the 5KT utilizes a hydro boost system, and the QSW and 4KQ utilize 
vacuum assisted brakes, there's gotta be some accomodation.  TIA, John