like i said.. the BBk does work.. from what i know, NO equal length headers will work. i think mac long tubes will but havent used them, i think MAC has "P" specific headers.... idk how much. the bbk works great for me(i like the long tubes many much). any header will "fit and bolt on", its just the sparkplug is straight unlike the e7's (there angled). and burning up sparkplug wires and boots sucks. and the shorty accel plugs are like ?12$ a plug.... freakin crazy.. and only a 1/4 - 1/2 shorter, still wouldnt clear. (trust me!!!) just go with the BBK longtubes or i have heard that the frpp 87-93 shortys are "redesined" and now fit the "p" heads...... but anything you do.. your going to have to fork over some money...as for tuning... i havent gotten her tuned yet, with all the mods in my sig, she runs pretty good (most of the time) she dies once in a while at lights, but starts right back up. good powerband and pulls pretty hard. im happy for now....