hey jetty, here is one i know about. i bought a rooster booster (used) from jim brock last month
for $150. he included gaskets and stainless bolts (and shipping). he told me 2x that it would not make my boat any faster but would give a awsome roost. was he ever right! i went under a bridge, the cars had to use their windshield wipers on labor day. the brazos river cops pulled me over and expressed their dislike for the monster rooster tail and dislike for the free carwash.lol
i found jim on the banderlog board his shop is called CYCLONE SPEED AND MARINE in Pacomia CA. His telly is (818) 890-1867. he is a great guy and was helpful. oh yea, i had to extend my steering cable a bit in order to turn right.