[Antonm]

Does this make me look speed on hills or over pass when pulling a 5th wheel camper i also loos speed when not pulling what can that be I’m new to this trucks I have only own gas trucks

I got the truck in November and all I can see it’s stock and it’s a 5.9 automatic and what I’m pulling is a 5th wheel Rv 41 ft about 13,000 lb

An all stock 95 auto truck had a whopping 160 hp when new (probably a little less now). Its no wonder you're loosing speed when towing a 13K lbs camper. These trucks are DOG slow in stock form, there are plenty of free and cheap ways to bump up the power, but power houses in stock form they ain't.
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[Antonm]

Ok what upgrades do you recommend on the transmission and on fuel like the pump fass or air dog and injectors

Read through the stickies at the top of each section. There is a wealth of information in them. There are answers to questions you don't even know to ask in them. But in short, those electric lift pumps like FASS and Airdog are expensive and unreliable compared to the stock mechanical lift pump and with a simple spring upgrade the stock pump is capable of supporting 500hp
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