Yes. Electric fuel pump to ensure the stock pump does not lose pressure. What controller are you talking about? I am talking about the AFC.
I guess since more people are concerned about telling me what I need to do (spend more $$$), must not have a problem. The dog growls, accelerates hard at 80MPH, spins oversized tires, starts at 20F without waiting for glow plugs. Must be good.
It's nearly impossible to say why your engine runs better now than before.
Having gauges to tell what boost and egt was before and is now would have helped.
I'm not going to tell you to spend money, it's yours to spend or waist as you please.
But it's well noted that operating these engines above 1200 degrees egt for extended periods will cause damage to the engine and or turbo.
Also operating a HX35 above 35 psi boost will greatly shorten the life of the turbo.
It's your choice if you want to buy gauges or not, but I can assure you that on a non stock fueling 12v eventually you'll pay the price for not having them.
Also if your auto trans is still stock it's well documented in several threads on this and other forums about how little of a power increase these trans can handle in stock form.
A few dollars for a shift kit to increase line pressure could save you thousands in a trans rebuild.
FYI Ford and GM use glow plugs, Cummins engines have grid heaters in the intake. Using the correct jargon will stop some of the jabs your getting.
Please continue to post.
Lots of good info on this site and people willing to help but look at it this way.
Having gauges on a 12v is like hooking a scanner to todays new engines, if you don't hook a scanner to a new engine it's a guessing game has to what it's doing, without gauges on a 12v it's the same thing.
The photo below is of a 4bt Cummins but they use the same bolts
If the bolt in front of the valve cover and along the sides of the injectors look like the ones in the photo you truck still has stock head bolts.
Studs would have threads sticking up with a nut on them.