Join Date: Mar 2003
Location: Washington State
I don't know about the fit of the two pulleys you mention, but the timing marks will be different for Spica and carbureted cars.
You can probably get the correct pulley for your car by posting a wanted request on in the forum devoted to Parts Wanted or by contacting one of the major Alfa parts suppliers. There's a list of who they are somewhere on AlfaBB.
Many Alfas. All gone, but none forgotten