Nothing wrong w/ the Fenton headers & Offy dual intake w/o grinding them but if does improve the fit. Basically it is the flat surface where they meet the head that is typically uneven so it will depend on your parts. I did not have to surface grind mine but getting a good fit was an exercise. Stay away from the Rochesters as has been stated. They are notorious for leaks. The Carter/Weber duals that Langdon sells are good carbs but are a little too much under full power for a 235. They are progressives so at little throttle they operate as two one barrel carbs and were original to 84 or so Ford Escorts. Electric choke so you'll need to do some wiring unless you replace the harness which is generally a decent idea on these old babes. Do not recam if you want a decent idle unless it's with a 261 cam (6 cyl. Vette cam).
Long tailpipes/no mufflers will sound better than glasspacs IMO. That is what we used to do back in the day or a single exhaust with a steelpac muffler.
