I have a 3.8L 1985 OMC that idles great sounds great and runs great in the no wake zone. When I throttle it up the nose goes up the tack reads 2000 RPM but that is all she wil do. I have had the carb rebuilt, the timing checked, cleaned and re[placed all the filters and screens. I am not sure but have a fews ideals but would like second opinions.
1) Fuel pump cant handle the volume at higher speeds
2) the coil
any help would be great.