Re: 65 Lone Star w/50hp West Bend
Being trimmed all the way in could be the reason for your bow rise. Try moving the pin out a hole or two, running it in each position and noting the performance. Ideally you want the outboard perpindicular, straight up and down...not leaning back or inwards. 2 inches is about 1 inch too low, but not bad. Modern TCW-3 outboard oil is fine for your gas/oil mix, don't know about synthetics for the gear lube...I use only dinosaur-based petro products. Back when my daughter was small enough to be a lake rate like her Dad we had a 73 Ebbtide 15 foot glass trihull with a 73 Merc 500 50 hp outboard. Always ran it in the second or third hole out from the transom. Putting a fin on the cavitation plate made a difference too, got us up on plane quicker for tubing, etc. If the trim tab bunch read this, I'll get slammed for mentioning a fin but they work well for some of us. First make sure your outboard is exactly straight up and down, adjust it using the trim pin holes, and see if that puts the nose down...maybe all you need is a little weight up there.