Thats the problem with the 400 in the Elcamino. Dont get me wrong, I love 400 small blocks.But ,it has so much torque how are you going to hook it up without spending a bunch of money. with the elcamino in stock form while you're spinning a 327---or 350 is long gone. Now lets say You want to put a motor in a 4000 pound 72 Monte carlo,I'll go for the 400 every time. If I had a short rod 400 in a stock chassis 78 on el camino ,as light as they are in the rearend I would want a cam with good mid range torque, take some away from the bottom end and take all the gear out of it ; Then I'd be at the other end quicker