+1 With your combination it "should" be better to launch at a lower rpm. It will as stang93mustang mentioned, flash higher from the lower rpm than if it is "hard stalled" like you are doing. BUT to work right the carburetor jetting and squirters must be right or it could stumble as it transitions from part to full throttle. This will also affect your reaction time to the tree. To improve the under 2,700 rpm performance , you could advance the cam 2 or 4 degrees. This will help that area and possible the overall performance as well.
I may not be a GT350 Member but I am a GT 350 owner , stay thirsty my friends