buying new

Looking to buy some drag radials for my 68 cuda fastback with stock location rear leaf springs, has 8.75 with BBP and 15x7 wheels with 4.25 BS they told me I could go as big as 275-60-15's? I would like to stay on the safe size and go with 225 to 265-60's or 50's X 15 let me know what you have. PM brand, size, condition and price with shipping to zipcode 81507 in Colorado.

Tire sizes sound good ,ask about sitting outside,in the sun. Ultraviolet rays decimate side walls,unless covered.(j.m.o)......