Hey guys I have a 86 K5 that I recenlty lifted a put 36 Iroks on. Even before I lifted it and installed the new tires I have had problems with power and bogging down. Even when it was stock on 29's, 4HI was basically usless I was just puttin around the trail. Anytime I would get into a mudhole filled with some water i would just bog down so bad that i tires would be barely spinning. This is stock tires now. Slap it in 4LO and its got good crawling power even with the 36's and stock 3.08's. But once again if I plunge into a mudhole the damn thing will bog down so bad that the tires are serious barely even turning. I know i need 4.56's which are going in it next week but what else could it be? Is the motor shot, need a new fuel pump, or am I taking in water through the intake? Even if I am taking on water through the intake, there is still a problem b/c something i can floor this thing only highway and it will barely move. The last mudhole I went it last week i positive i took on water b/c it bogged down then started running really rough and then wouldnt start for a min. Then once it started water came shootin out the tailpipes. I rarely ever have any problems starting the thing. It usually takes a few pump on the gas pedal and it cranks over and run very smooth. Im pretty sure im in need of a new carb b/c i leaks fuel occasionally. Sorry for the life story. Any help is appreciated!!!