Hey Brent. Hope you did well last weekend. I pulled my cat off thinking maybe I had an exhaust restriction,( MAF didn't fix it). When running with out the exhaust I could clearly hear random misfires causing power loss and surging. Put new wires on and Bingo. Hope engine holds up till the 5th. I got possable rod knock, hopping convertor noise at low rpm. Basicly idle in gear. Gonna run it anyway. If it breaks it needed fixing anyway.