Back when we had my club, a New Jersey member about 1979 or so came up with,of all things, a '61 impala 4 door sport sedan, 348,250 horse, 3 speed stick car, and he got a wild idea of trying it in NHRA Stock Eliminator with a 4 speed,4:88's, a steel spool and some good axles, either Warner Headers,or some Stahl's. He called some cam grinder to get a 348 stocker cam, back when they had a max duration spec,unlike the cams we use now that only have to check for lift,and he put some research into it. It fit NHRA O/S, 15 pounds per horsepower,at 250 rated horsepower and with 170 pounds added for the driver's weight, it wasn't exactly light. He ran a Muncie 4 speed, probably the wide ratio, and the rule book stated"Any OEM type intake",so a consultation with the Div.1 tech director verified that he could run the factory aluminum piece,even though they never came on the 250 horse engine,it was an accepted part. He had some head guy back there do up his heads, got a good 4 jet,not too hard since the 220 horse 283 and the 250 horse 327 all used the same one as the 348,and while he was getting another block assembly built, he put together what he had and it ran 13. 70 at 101 or so, with the 70,000 mile old used short block that came into the car. After the good short block came around, it ran a lot of 13.00's and even a few 12.95's. Kind of an amazing thing. The O/SA index now is about a 13.00,the stick index is probably about a 12.90. With today's stuff and improved technology in just about everything, this could go probably 12.60's. I think much technology that could have helped the small port engines in the way of heads, camshafts,and intakes especially probably went elsewhere,and we never really got to see what a 348 was capable of doing. The newer intakes spliced to a W motor base might show up some real surprises on a dyno.You never know!!