After some info. Looking at building a solid street 4.1 carbie fed and curious as to the best cylinder head to use eg c1, c2 or other, i have a c1 casting and a c2 and intend larger valves and nessicary port work so with this in mind will it make any difference which i start with? Not after a specific power more just a very solid amount of torque. Any info would be appreciated as i cant seem to find a whole lot of info on the old bangers.