Okay,,, figured out why they wouldn't sit flat on the head,,,, the double D shaft was in the way. Once I removed the shaft they sit flat against the head and gave more clearance from the oil pan. Not as much as I'd like but they could work. I would have to change the steering up to get them to work. However,,, I've sent the Flo-Tech headers back and have a set of Hookers coming. Went online and looked at them side by side. The difference is the way the end tubes travel to the collector. On the Flo-Tech the end tubes (say #1 and #7) go to the outside of the collector and at a longer angle. The collector is also at an angle that points toward the oil pan instead of straight down. On the Hooker the end tubes run to the inside and at a shaper angle and the collector looks to point more toward the ground instead of the oil pan. I believe this will provide the clearance I need for the double D shaft and not require re-routing it or using a double swivel joint. Once I've tested the new setup I'll get some pix posted. Hopefully they will be here by Saturday for test fitting. With all this rain we are getting I can spend more time in the garage