I have a 1981 18' Sleekcraft (kauai or rebel, still trying to figure it out).. It has a fresh 420+hp ford 460 & fresh pump.. I'm not sure what my high mph hour is, but it moves pretty good..
When I bought the boat it came with no place diverter, but had standard (manual adjusting) trim tabs on each side of the transom. I put a place diverter on it and took the trim tabs off. My question is I'm not sure whether it should have a ride plate instead of the trim tabs, or if they serve the same function and should put the tabs back on? I've read that a ride plate can help some smooth some of the bump and slam of running in choppy water, which my boat can get rough.. Also, at times it does want to porpoise a touch when I'm getting up to plane, it's not bad, but noticeable..
Thanks in advance!