I'm the semi proud possessor of a 93 it has been modified multiple times by multiple owners prior to my possession.
It has a continual haze at all times and heavy smoke on moderate acceleration. To the best of my ability to tell it has DDP stage ones and a BD pin.
I've raised the star wheel as high as I dare, backed out the smoke screw to 0 contact, I've yet to turn out the fuel screw.
This truck hauls the rare heavy load, but is mostly a utility truck with hopes for the best fuel mileage.
On review of my options I note the DDP fuel pin has a much shallower ramp with a rapid dive in at the top in comparison with a fairly linear ramp on the BD.
Does anyone have a head to head comparison of the two? And does anyone have a stock pin I could buy (none on Ebay today!)
TIA

 

I like the looks of the Hungry diesel pin. it is made by a first gen guy that knows these trucks.
THD Fuel Pin

 

the BD pin and THD pin are fairly comparable. I wouldn't waste the money on another aftermarket pin.

 

I've got a stock pin you can have. Shoot me a PM.

Stu