Well Actually I want to replace it because my High Idle kicks in everytime I start the truck. And its HIGH. I'd have to crank the truck let it idle for 5 mins. As long as I keep my foot off the gas pedeal when I crank it I'lll be fine. Any Temps under 50 degrees I'd have to manually open the butterfly in the carb with a screwdriver and fight the truck for 5 mins to get it to start. Heck I bought the carb 2 yrs ago. Still sealed in the original bags and all.