Shueman,
The motors in the 28 Speedster that was in the L.A. Boat Show were built by Keith Scroggin in Oklahoma (405-818-6209) cell number.
He has been building marine motors like these as well as unblown motors for boats in this part of the country for the last 30 years.
His motors are always clean, tricked out and they always make good power.
Plus they last!!