So changed raycor bowl, fuel lines. Bled lines cracked injectors and bled them. Checked about three quarters of the intake line as it’s a solid 1/2 tube and I can’t get it all the way out of the tank because of height issues. Still getting a variation in rpm. New filters on. Ran for Ten hours the other day a few little variations. Ran for 7 hours yesterday first 6 we good then bumped speed up to 2200 rpm and a huge variation drop in rpm. That’s when I cracked the injectors to bleed them. Today we are travelling at 1800 rpm and I’m getting slight variations in rpm. Should I just hire someone at this point. I don’t want to do a crossing of the Atlantic to the Bahamas if this is still an issue.