Hi, my fren back in my hometown is rebuilding his 1jz atm ( still with standard bottom end juz new rings, port n polished, 80mm throttle body n maybe a new intake manifold) n he is looking for a set of aftermarket cams for it. Currently it is running on a high-flowed ct26. Any recommendation of cams for eg, brand, duration, lift also if valve springs r needed with the cam recommended or not. Or he should juz stick to the standard cams? Any help appreciated. thanks.