Coker tires has E70-14 and D70-14
https://www.cokertire.com/tires/e70-14-firestone-wide-oval-redline.html
https://www.cokertire.com/tires/d70-14-firestone-wide-oval.html
15x10 with 4.50 BS
29.5X10.5X15 Mickey Thompson (still lots of room)
Previous owner bears all the credit for the tub and moving springs in. He had 14 inch wide slicks on it with 12 inch rims and 6 inch BS
I gave that cam away to another member here but it ran great on the street. It eventually ran consistent 12.3's with slicks with a 1.62-1.66 60 foot time
I have a 70 Dart, 8 3/4 rear and I was running 15x7 with 4.25 backspace 255/60/15 and it fit. Switched to 15x8 on a 4.5 backspace and could only fit 235/60/15