I apoligize for making the statement I made and leaving you hang out there.
If you are trying to make a two groove pulley for the stock water pump on a 235, here is what I did. I used a stock one groove pulley from a 350 and cut a second one groove 350 pulley to fit on the shout of the first 350 pulley. I basically removed the snout off of it and slipped on the first pulley. I adjusted it to line up with the two grooves on my two two groove harmonic balancer, spaced it out slightly and welded the second groove pulley on the snout to line up with outside groove on the balancer. It works great and looks very acceptable.