i have a 2005 f150 supercrew 4x4 lariat. so far installed i have a roush cold air, roush cat back exhaust and superchip cortex.......i just ordered a 2.5 inch leveling lift the other day. what would be a good 34x12.5 tire to stick on the stock rim without much rubbing or any at all?

 

305/55/20 is about 33.5...heres a pic on stock...I went with BFG KM2 MUDS

 

i have the 18" wheels on mine......i read somewhere about some 285's and 305\65's would be decent. i also have a 3.55 rear end. which shouldnt matter, really. did your throttle body spacer make much or any improvement?