I have tried to tune my mustang (289 2 barrel) but still have black coming out of the butt end. Also it smells very rich in my garage when the car is running. I am now assuming I need to rebuild the carb and I have never done it before. Is there some place to get step my step instructions on how to rebuilt my carb. I can buy the gasket kit here in canada for around $25.00. Looking online it has mostly gaskets. If someone could be so kind and please send me a link to any place with a complete step by step on rebuilding my carb would be great. I do have the 1965 ford mustang shop manual but wanted to see if it is hard and if there is a step by step that I could refer to.