Yes, the fast ratio arms were installed. Both sets were above the linkage. One set were hedmans. The other set I have no idea. They were an old set I used for engine break in. The tube routing was identical only difference that I could tell was flange thickness. I would bet doug's would fit but it is not my money.
Firm Feel lists on their website that 2" tti's don't fit but they have more clearance than any header I have seen.