Hi guys, what year did the 2bbl start on these engines? Were they all dubbed "super sixes" witht he 2bbl or were there some "plain clothed" versions? When does the head change to the non-plug tubes?
Thanks
They also had super sixes in the early-mid sixties. I was reading (somewhere) that they had a 1 bbl (regular), 2 bbl (super six), and 4 bbl (hyper six). If I remember correctly, it was like 66.
