Boss 338 65 C10 wheel help?

[Dubnova]

Can anybody tell me what size Boss 338 wheels fit a 65 C10 short fleet side? I have read and re-read the BOSS threads over on the 67-72 side http://67-72chevytrucks.com/vboard/s...d.php?t=352320 and I am still kinda confused. I have a CPP 13" big brake kit on the front with a 5.5"/7" drop in the works. It seems that the 67-72 guys are running a "20x10 (6.250" bs) and 20x8.5 (5.250" bs) with the ever popular 5x5 bolt pattern"with a 295 on the and maybe a 255 on the front. I figure I might have to rethink my static drop. Any help would greatly appreciated ....Thanks