My 318 w/850 Thermoquad never idles well in gear, and stumbles off the line
The reason people are saying the carb is to big for your 318 is because the teen can only pump 460 CFM @ 5000 RPM, thru it if there were no restrictions at all. In reality it only gets about 400 CFM thru it @ 5000 RPM. The only way to get more CFM is to use a turbo charger or a blower. Using a carb that's twice as big as needed seams kind of a waste.
