Try machining up some tappered flange spacers for the clearance issue. Its easier than altering the header tubes or flanges and cheaper than fab'g a new set of tubes.
Very good looking part my compliments to carbonfibervalvecovers.com great quality and a very good job at laminate and excellent job at tooling. Do you know what resin base they used as far as the heat factor is concerned against the headers so they dont boil or yellow with the added heat factor.
There is a height issue for me with the Nelson turbo headers that would not likely be an issue for anyone else. I'll have to space the headers out or mod them to clear.
Jody,
Sell me the headers real cheap and order a set of new ones cause you don't want to really add spacers.