Rescently there has been some more interest showin in longtube headers for the MN12/FN10 Chassis and Wynn from www.texasthunderbirds.com has expressed interest in making these. We are just trying to figure out how much interest there is in these before he actually persues them. I don't know if they will be Tri-Y or use a 4 tube merge collector yet (although I would prefer a Tri-Y because of clearance issues).
So, post up if you are interested.
So, post up if you are interested.