My friend just got two distributors for $60. Oone of them was supposed to be for a Z6 head but the guy said he confused himself and couldnt remember which is which, so he said, "10 more bucks and you can have the other one." so thats what went down. Well, what should the numbers on the distributor say? One says: TD41U and B14. The other one says: TD41U and what looks to be 4T10. Well i called up one of my friends who works at Discount Auto Parts and he said for the Z6 head it should be TD42U or TD44U... Can you motor guru's help me out here? We want to have this swap done sometime this weekend. Thanks for the help in advance.

-Joe