A few years back I was into those early Novas, rebuilt the little 194 motor, running a just under 400cfm carb. Wow what a huge jump in performance with just that carb on an Offy intake. For all the trouble and mods involved, I would find a 250 (GEE ONLY 56 cubes over where you started), easy swap and no headaches, OK only a few minor headaches compared to the job of sticking the 292 under that hood. One more item re. the Nova motors, they are unique to the Nova chassis, ie. pan and oil pump. Be sure to pick up a copy of Leo's book "Chevrolet Inline Six-Cylinder Power Manual". That early Nova is a great little ride, wish I had my SS back.