Quote Originally Posted by modman View Post
how far up should i be with cavatation plate from bottom of boat sorry its 1-2 inches below bottom i can raise up about 4 more inches not sure where it should be
start off with the centre of your "prop shaft" 2 1/2 below the hull .keep an eye on the pisser/telltale and keep going up untill it stops sucking water.then lower it a 1/2 inch.
it might pay to fit a new impellor kit ,if the one thats in there is pretty old