Hey guys, i got a set of pi heads that i bought to do the head swap on my car and i relized i could by a 5.4 2v for around 500 with the pi heads on it already. I was wondering what would be a good price for these heads ? 300 or 400 hundred maybe? it has pi cams with it also but they probably need to have the valve seals replaced like all used heads....... what would you guys recomend for selling them..... Anyone interested?