1996 mercruiser 4.3 v6 thunder bolt 4,4 barrel carb. just rebuilt.
Motor starts good ,runs good at idel and fast idel in gear.But cant get on step,kind of like no power.
compression 125 psi on 2 back cyl. 115 to 120 on the rest,just change plugs also.After motor warms up oil preasure drops reel...