Thanks guys for all the help, but finally found out what the cause is. The guy who gave us the bus, yes gave as in Zero Dollars to are school, had the trany serviced AND HAD THE FUEL TURNED DOWN,
First off...
score on the bus!
Now on to "turned the fuel down"
Unless you have one of Detroits "Fuel Pincher" 92 series [with bellville washers on the high speed spring pack]---unlikely but ...... there is no real way to turn down the fuel without changing injectors .....unless it is one of those fuel pinchers and that would require removing the high speed spring cover and loosening up the bellvile washers and completely re-adjusting the injector racks......
I would still bet based on your lack of any acceleration smoke that whoever did the "adjustment" took the easy way and simply adjusted the fuel modulator --throttle delay--- tighter than normal.
Depending on weather yours was a rebuilt or a complete swing engine was installed, you could have either...
A "modulator" is a device that attaches to the left bank ---cyl L3---injector control rack [tube] and operates off of turbo boost [ or air box pressure] and is adjusted after the inj racks are set with a gauge tool that is sleeved to set on one individual inj control rack [I believe it is .485 but don't hold me to it
] and spaces an arm on the tube to the modulator piston....delaying any further fueling till boost [air box] pressure is adequate for fuel being delivered....
A throttle delay is a simplier version that attaches to the right bank ---cyl R2-- and is merley a small piston in a bore that is fed with oil pressure from the rocker arms....adjustment is similiar to the modulator...only 2 setting tools are used---a pin gauge and a sleeved gauge--- the pin sets in the top of the piston bore , limiting th episton travel, and the sleeve gauge determines the rack travel....
Alot to comprehend but
clear as mudd