I recently rebuilt my 95 Mustang Cobra. I switched to GT40P heads and they have a slightly different spark plug configuration so I cant use my Mac headers. Does anyone know what type of headers to buy? Will a stock manifold work? HELP!!  

mac makes a special "p" headers for the conversion, ive heard long tubes will work but mac's a definent way to go. And your not going to get all the power from those heads if you run manifolds!