Ah so you do know the FE/FT thing. I said FE on purpose, to see if you would say something. So my plan backfired. Yes FT's were the 330, 331, 361, 389, and 391. BTW it was from a 72' F600 dump truck.
OK put your figures in the desktop dyno, took off 2 HP. Looks like the dyno was pretty close.