My question is i recently took my 4 cyl galant to the track and realized i just had the biggest upset of a life time our cars are not fast at all. so i have a question what is the difference between the galant 6g72 and the 3000gt 6g72 and when it says dual over head cam what does the extra cam do? and would it be possible to do a swap from the 4 cyl to the galant 6 cyl and or the 3000gt 6g72.