Yep, I got your point but I don't know a single chebbie guy that knows jack squat about a FE so using the 351W to 400 bearing comparo will stump them. In my earlier post I made mention that a 351W dizzy will work in a 400 if you change the drive gear so that too is a point that you can stump the car show know-it-alls with--and trust me, I've never met any that knew the 335 and 385 hared a dizzy! I've had to use all these points and I've had plenty of guys stand around my car for hours and tell me that I was wrong and that a 400 is a big block. At one cruise night I had to get a cop to tell a guy to leave because he was making such an *** of himself.