I have a 90 lx it has a moroso cold AIR kit on it, do I have to buy a special mass air meter for cold air or will any mass work. I am wanting to put 24 lb. injectors in it for now and upgrade later what is the best mass to buy. My mods are an explorer upper and lower e303 hedman headers offroad h-pipe, will 24's be enough. I am planning on buying a set of trick flow heads soon.