new to site question about pulleys

Welcome to FABO. I ran to same problems when I started changing things. I found what worked for me was to get a whole set that was sold together for my engine. Seems every time I try to alter one thing it snow balls and have change all kinds of things. Good luck and again welcome. someone will chime in that may be more help than me.
AMEN TO THAT BROTHER, JUST WENT THRU THAT CRAP ON MY 440 DART, WENT THRU ABOUT 40 PULLEY'S I HAD SITTING AROUND AFTER BUYING FANCY ALUM CRANK PULLEY AND A WATER PUMP ONE, AND THEY ARE ALL FIXING TO BE FOR SALE.........BETTER TO BUY IN MATCHED SETS,WILL SAVE YOU ALOT OF AGRAVATION AND FABRICATION AND FRUSTRATION !!!