I have a 1970 6cyl. 250 and I can't decide which would be better?Two or Three. I'm not looking for performance,it's a stocker, just looks and driveable.Using either Offenhause 5414 or 5415 intake,also what carbs to use? and split exhaust.If I go 3, will it run ok on 1 with the others being secondaries? Any ideals will help . Thanks