I wonder if someone could give me some input?..I run a 20 ft riverboat with a 16 degree v and a stepped hull,my trouble is I get excessive cavitation in a tight turn,I was wondering if a loader grate or inducer impeller might help stop the cavitation,and also how do you install these? would I need a new shaft to install the inducer,and what style or size of loader grate would be sufficient...by the way I have a mpfi 454 rated at 385hp,and american turbine sd309 pump...thanks for any help.