Eagle 21' aluminum tunnel, Should do well over 100 with a 600 inch Ford in it and you will fit just fine. I fit in my 16' Eagle and I'm 6'3". Sorry it doesn't fit your "old" criteria, the bottoms are new, state of the art, and very efficient. Might not fit the budget if you are looking for an old jet boat, but you could probably find a used race hull for a reasonable price-Aluminum Squirt