I think not, that is a kit that contains parts for an HEI. You need the entire unit. An delco HEI dist from a 75 buick 350 will work. Find a junk yard version and rebuild it or buy new/reman.
1975 BUICK LESABRE Distributor
Needs a coil, any HEI dist coil circa 75 will do.
For me I would leave the points distributor unit in it for now, maybe pull it out and clean it up some new points, condenser, cap, rotor for 50 bucks done. Check rock auto for those or your local parts store. If you do HEI conversion then you need to change the power supply wiring to it etc etc. Not too difficult but,,,IMO
Stick with one thing at a time, carb first. Yes call the desk before you order anything on-line.