It's a hard read, so I just threw something that has happened against the wall. :)

Wow maybe u are right and its broken pin on the distributor gear. I will check it!

lol post some pics like he said. The gear could be spinning or something wrong at top of distributor

I buy cam with display in home depot and going to see what's going inside... Checked distributor second time, pin is on place.

ok, this is outdrive boat, correct? you need the pan essentially off to get timing cover off. if you have a car cherry picker, you can get it up enough to get pan, timing cover, and rotate motor till cam comes out. but if this is the hard cam gear, chances are cam is ok. just eats every dist gear that is softer. what gen motor? might be able to shine flashlight down distrib hole and crank motor to check if gear is ok, and turning. but if pin breaks, it retards cam 4 to 6 extra degrees, till the bolts let go.

No sterndrive. Its straight shaft thats why i hit bottom.

Ok, looked at pics of your boat. You will have a very hard time lifting that motor yourself. Weight for block-heads-intake is about 700 lbs. 900 with trans still attached. Engine is dead center in the boat. You need a boom truck to lift engine AND you need to replace or repair the 1 prop you used as a depthfinder. Props are not very good depthfinders. This boat has to come out of the water at a marina that can lift the engine out for you.
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Thanks. I have a same plan. In Marina they have big forklift so it will be very easy to pull out engine .

Start looking for people who can repair that prop now. You don't need to pull the boat, send prop off, repair engine, and still be waiting for the prop to be done...

do you think it's the timing chain?? Ouch.