My 1966 chevy pickup (C-20) v8 283 which uses a carburetor, not fuel injection, has a post that sticks straight up. The post is inside the top of the engine, and when I tried to put the carburetor back on, the post broke because it was corroded so much. How should I fix the post? Will I need to replace that part of the engine or is there another way, such as welding the blot back together?

Strange, a 283 that has a carb attached with a post in its center.... But corroded through to break. you must run without the aircleaner. Now, remove the intake and get it fabricated. Any slag or debris would get into the valves and pistons. You must need to remove, fabricate it, reinstall with new gaskets. You cannot really do a carb conversion without updating the intake and spending a small fortune.

must be a cool and damp or wet climate, or no preheat tube. Water forms on mine and tries to corrode the base plate, its a 307. it bolts on, he could get a little bit newer OEM part and a 2 jet. May even still look right. The 2bbl 350 has silver dollars instead of sacajaweas. but you may have to block off an egr passage and paint it. use a socket instead of a manifold wrench.

are you talking about one of the studs on the intake that bolt the carb on? if so you can try to drill the stud and a easy out. or intakes for your 283 are not that bad of a price after market.