doing cam gears as an alone mod is kind of silly, theres a fair bit of labour involved in just installing then as they have to take the whole front of the engin off (if u do decide to go forward install a new water pump at the same time to save money and a timing belt) after the half a day ball park to get them in its bout a day to dial them in and u dont really gain power you can just move it earlier in ur rev range
its a mod thats best done in a stage like, cam sharfs, cams gears, timing belt, water pump, head gasket, valve springs then a days tuning.....
xoxo