Pulleys are the worst , there are so many different combinations & offsets depending on the damper thickness , I have probably 4 spare pulleys I have collected as none of them fit what I was trying to do , I highly recommend you keep the set of pulleys that came with the engine but the problem comes in with transplants , if you take a 440 out of a motorhome it will have a matched set of pulleys but not what you need for a car install so now you need to get a set from somethings else , I have 1-4 groove crank pulleys , some are all the same diameter some the front pulleys are smaller or larger , some hit the water pump pulley so that must have had a smaller water pump pulley to work .
I an sure you could straighten the pulley somewhat but wether it will be enough to keep the belt on I am not sure .