Quote Originally Posted by 53 Willys
Its time to change the carb on a 383 SBC. My son inlaw owes me a carb and has two. Question is, cfms being equal, street driven, Spreadbore or square?
it depends on your intake. if a Q-jet came off of the intake then you will need the spreadbore. if you don't have a Q-jet intake the you will need the square carb. on a Q-jet intake the back 2 holes are bigger than the front 2. you can use an adapter. if you need to.