Went to a swap meet and I found an old issue of Popular Hot Rodding May 1971. In it is an article about "project Y-block". The article goes thru the building of a 312 with Engle cam,Jahns pistons, 3 strombergs, Accel distributor. The 312 was .060 over 322 "screamer" as they said. When put on the Dyno it put out a whopping 258 HP @5500 rpm. Very interesting article with lots of pictures .

55Birdman  Hickory NC