I have a 93 mr2 turbo that I need a new head for. I have heard that the JDM head flows better. My question is will a jdm head bolt straight up to all my parts I alrady have? Will I need a jdm intake and exhaust manifold? Will I need new electronics to make it work, ignition, ecu, distributer. Basically whatever need to make it work? Also I have aftermarket cams, titanium retainers, jun valve springs and ferrea over sized valves in my current head. Will all those parts bolt in to the new head? I know I have a lot of questions, any help would be greatly appreciated. My 2 has been down for way too long , need to get it going again soon, so I can go piss off some more v8's.