Originally Posted by challenger1320
This worked on my B1 heads

Nice to know.
From the original poster, the offset of the corner bolt holes:
Indy 0.299"
TF 0.350"
B1 0.325"

Makes me wonder if the Indy heads actually used a smaller (0.299") offset then the others.
I don't worry about 0.016" differences, as manufacturing tolerance for the location can easily be that much.
But the 0.070" difference the other poster pointed out is notable.

ValveCoverBoltHole-corner.JPG
1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1