I've inherited a 1970 GTO 455 convertible w/automatic trans, red on red w/black top. The kicker to the whole thing is that it was factory ordered with the 601 Ram Air inlet option which is only supposed to be aesthetic and not functional, but it actually has the 4BBL functional Ram Air carb and cowl. It's a fuctional 455 w/ram air (verified) that is not supposed to exist. It is PHS certified and all #'s matching original. My question is, how rare is this car and can anyone estimate a $$$ on a restored version? Everyone i've talked with seems to think we are sitting on a gem, but i don't have any true Pontiac experts i can rely on. Any help would be appreciated.