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Engine/Transmission (1994 - 1998) need help with delivery valves

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I have a 1995 12v cummins. Im running bosch 370 injectors, 0 fuel plate, cranked star wheel, 3000rpm govern spring, air dog II 165 fuel pump, 4inch straight pipe, banks intake, afe cold air, industrail injection 64-14 phat shaft, and snow performance water meth injection.



Just tryin to get the best input on wat size or brand or cut delivery valves i shud run i here so many differnt stories reading other forums... thanks guys #@$%!
 
Don't know much about them but Bosc has 181s and 191s. I believe that the 181's are on the 215 hp pumps. Joe D stated in article in theTDR mag(or was it a thread) that 191's didn't deliver much more fuel than 181's.

There are other ones out their though.
 
The 181s are what I used for 800 HP, single turbo, diesel only. I tried 191, brand new, several times and gained 0. 0 HP with the 215 HP pump, and lost about 12 HP with the big 13 mm barrel pump. I have a new set of 181s if someone needs them.
 
Right now im only dynoing 250 hp with the mods i have u guys think 181s or 191s would help me out any or shud i get a newer style pump like a 215 pump. and how much wud u want for the 181s
 
Yes the 181's would help out. They would get more fuel to the 370's. A good 215hp pump would be nice with 181's would be nice but you have your pump set up pretty good.
 
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