Hi I have an '86 Firebird Trans Am and I'm working on getting the Fuel Rail taken off so I can replace O-rings and whatnot on the fuel injectors but im having trouble removing the fuel feed line it seems that the nut has warped and on top of that I think its rusted a bit making it really difficult to remove, I've tried getting the standard 5/8 flare wrench on there but its warped enough that that will not fit, on certain sides I can get a 20mm open ended wrench to fit perfectly and on some sides I can get the 5/8 open ended wrench to fit... if anyone has any suggestions or has had this problem before help would be much appreciated, thanks in advanced!