What a pain in the ass! I ordered my guages from summit, they came in and the air fuel was a pain in the ass, but works well, since I'm adding nitrous I thought it was a good idea.I also got a oil pressure guage,little did he tell me that the mechanical guage had to have an oil line run to it and a fitting welded to the oil pan.So I have to return it and get the electrict one. The guy on the phone recomended the mechanical one, assho*e!well whats another 4 days! damn summit!..<img src=icon_smile_evil.gif border=0 align=middle><img src=icon_smile_dissapprove.gif border=0 align=middle>