Turning back the clock
just a side note.....I used the headers from the Flash build w/ OEM suspension in a HDK Hemi build mock up.....fitment was nice, Instead of the motor being so high in the bay and the head crowding the firewall, the Hemi could be lowered and moved forward approx 1/2". Both changes allowed more tunnel clearance while still keeping everything tucked up. Looks like the factory heater blower could remain also.
I had always used the TTi for the tubular application and was concerned about drivers side exhaust / steering shaft clearance. FYI....either header will work.