I have a chance, when I'm ready to buy a set of 601's that had the intakes enlarged to take 1.94 valves. The exhaust stays at 1.5. They were enlarged using a bowl hog and the comb. chambers are at 55cc. This will be on my LM-1 350 w/ its stock pistons, no block decking. Most likely using a .028 GM gasket. Not sure on the rockers and push rods yet. I was thinking of a good non-roller timing chain. Motor has under 36K. I have full length 1 5/8" headers and will be using a 2 1/2" exhaust with X-Pipe. Trans. is a TH-350, stock converter and 342.1 gears. What would be a nice street performance cam combo to match the compression I would be looking at. Upping on the convertor stall would be considered also.