Points Gapping Spark Plug Gapping amp Alternate plug wires

"I just bought this boat last

"I just bought this boat last night, the seller tried to put plugs, distributor cap, rotor, & points it it the night prior. Now she is running rough, starts quick runs rough, I haven't had her out yet but it sounded more like a firing issue than fuel. Can anyone provide me the settings asked for above. Also, could a coil do this. I thought they either worked or didn't. Would this be a good time to convert her the electronic module? Where do I get one if it would be. I am new to working on boats but messed with some old cars growing up. 1965 Chevy Belair with a 283

Thanks for your help,"

What motor is it? Can't he

What motor is it? Can't help without knowing that.

"Sorry, cut and paste cut out

"Sorry, cut and paste cut out part of my message. It is a 1986 OMC 3.0L 140HP in a ThunderCraft."

"Some times condensers are bad

"Some times condensers are bad, brand new right out of the box. Try another new condenser first."

Check firing order. May have a

Check firing order. May have a wire crossed.