The MC carbs can handle some pretty good angles off road without fuel starvation, or flooding. Carbs are getting better, I have the holley TA 470 4 barrel on an offy intake. The TA series holley's are made for off road. It will take more angle than I feel comfortable with giving it, It makes my butt pucker and keeps digging. You can get a motorcraft carb at any boneyard, or there's a guy on ebay that sells them rebulit and set up for a direct bolt in on the 258. He also has an emissions version to get you by the sniffer if thats an issue in your area.