zc redlines at 7200 which is the factory setting with the zc ecu but most ppl use an integra ecu which has a richer fuel map which will cut at 7800 which ive had no problems with (but id suggest getting the valves down to the tight end of spec b4 u do anything like that, cuz floating valves at that speed will ruin ur valve train. id suggest against the hf tranny, ive got a spare one in my garage and probably wont ever use it, its good to get the zc tranny with the engine the gear ratios are great, very close together which will keep good exhaust velocity pressure at all times at the higher rpms which is great for spooling that turbo setup