So far i've figured out that the tranny is a 375thm and have read that they are a lighter duty. Was wondering if this is an issue at all and where it might have come from with a tag that has been polished and the only numbers i can read are 73 P2D. The engine has been rebuilt befor i bought the car 3 months ago and i'm just trying to find out some info. I'm not able to read the numbers by the distributor and can only get the front block id which reads 106548 YE. would appreciate any help in where i go to find info on this block