depends on if you have mpfi or dpfi (wiring) if you have the 4spd standard hb then you need new front knuckles b/c they only fit the smaller axle spindles

hcp engineering makes a good 4 mount kit and hasport makes a good 3 mount kit...search the web and find a shop/dealer near you or check the classifieds here and on other boards (www.thepartstrader.com)

you'll also need to adj the shift linkage for a b series motor...both mfgrs above sell adj shift linkages