I need some help...i was thinking of building a high compression KA....im gonna use Single cam piston,crower rods and aftermarket cams(not sure what kind yet) my questions what things outta both engines are better, things like valves,valve springs, stuff like that...i dont have the money to spend on titanium valve springs so just trying to find out which stuff is better out of which motor...o also how much does it cost to have a head ported intake/exhaust valve openings......thanks