1970's SF20 Stringer/Self-Bailing Inquiry

[castalot]

i have a 23 with twin 130's it does sit a little loww in the rear and would raise the deck for now i'm going to install the ball scuppers to stop the back flow into the boat when we are near the stern as far as the safty of twins it only works if each engine has it's own systems especially with the "improved" fuel we have!!