Yes I don't know the history of the bbm and the 2.08 valve but it seems they didn't think they needed larger than 2.08 for there performance 413/426 Max Wedge and 440 and 440 six pack but they were all so worried about 383 performance breathing abilities that it only became standard equipment for the 383 when it became standard equipment for rest.........
Ahhh, the entertainment continues..........
Don't see how that really helps Illahe's case.
















