Re: Wheels and tires finally on their way!!
Nice wheels and congrats. My only concern would the 4.75 bs for the rear, as I would bet dollars to donuts you'll get fender rub with 275's. 5" (a 1/4" difference) would have been a better choice, imho. In fact, I'd have rub on my 69' (with 9.5" wheel and 5.5" bs) with a 275 tire as is, but it's "centered" as best as can be for distance between inner/outer well. Your 9" wheel with 5" bs would be the equivalent of being centered....but 4.75 will put the wheel/tire out 1/4" more to the outside and I'm pretty sure you'll have issues. But...you might be able to roll the lip and solve it.
Learning & Relearning about the cars I grew up with.
69' - Built 350, 750 Holley, Elgin E920P Cam, 283 PP Heads, Long Comp Headers, MSD, TKO-600, 12 Bolt Posi 3.73, Hotchkis Rear, Eibach Front w/Hotchkis Sway, SPC UCAs, 3rd Gen PS, AR TTII's. Still working on it.