I can do 2nd gear burnouts on my 315 Nitto's & 255 BFG's, but its gotta be in the water box. I also have 373's, so that probably helps a bit. You gotta tach it up to ~ 4k minimum to get them to spin enough, then just brake tq it at 5k for a couple seconds and it'll start smoking. If your clutch isnt strong tho, dont do it. Just do a 1st gear burnout for a touch longer, to get them really heated up.