Power Problem

[genesis08]

Hi Guys I am still having a power problem.When the engine is out of gear the engine revs up no problem however when I engage gear I cannot even get her up on the plane with the hammer down!!!!.I have a new fuel pump [mechanical].Does anybody out there have the same setup as me I.E Inline Six.Does it need a low pressurs electric pump installed ?This is really pissing me off.PLEASE HELP.

Thanks Guys....Brian