Glutenhauler

No boost gauge. It's at mack right now. I'm guessing boost leak because I'm driving our 06 and there's a noticeable difference going up hills. Thanks again and I'll post results when I get it back

Thanks macktech. The tag on the engine has the engine serial # and valve clearances but that's it. It's a Remack. I'll have to check with my boss to see when it was put in but I do know the local freightliner dealer rebuilt it 2 months ago. Hopefully I'll have time to get into Mack this week to get checked out

VIN 1M1AK07Y87N023744 Can anyone tell me how much horsepower I have? It feels like the engine gives up going up a hill. There are a couple hills I go up several times a day that I end up in the low side of 6th before I stop losing speed. My boss gave me the ok to get a rerate. I found a thread on here with different options like the 460XT or the 427. I've got the Eaton 13spd but do not know the gear ratio of the rearends. I gross 86000 pulling a belt trailer. I would like to hear some opinions on what you guys think would ne the best option for the rerate

Thanks,

Brent