can anyone tell me what headers are available for a 351w with gt40p heads? i've installed these heads on my 351w(1982) which i've swapped into my 91 f150. some of the fellows on the ford truck site thought you stang owners might have an answer for me. seeing(as i've been informed anyway) that the gt40p heads have been swapped onto 302's in the 88 to 93 stangs. i know that its very unlikely that any shorty headers would likely bolt onto the y pipes on my truck, but if the headers fit into the engine bay and give enough spark plug clearance, i'm sure the y pipe can be adapted.any ideas? help would be greatly appriceiated. thanks in advance.