ok here is what i have i have a 94 12 valve that i just put a #0 plate in 4000 rpm governing springs 60lb valve springs and i advanced the timing to 17 degrees and that helped my egts greatly but i have a miss at a high rpm around 3000 it starts to sound wired and it gets louder as the rpms rise i thought i didnt have my timing advanced far enough so i moved it up to 19 degrees 7 mm on my pump with a cpl number of 1959 it has gotten better every time i advanced the timing but i dont want to go any more than 19 degrees on it so im looking for another solution to my problem could it be starving for fuel at a high rpm i need some advice or some ideas of what might be causing a high rpm miss should i go to a fass fuel sestem or something like that or is it something simple that i am over looking i would really appreciate any help that anyone could give me on this im banging my head off the wall and im tired of adjusting the timing already so i dont want to have to do that again thanks

 

My next step would be to check the fuel pressure.
Instructions> http://www.cumminsforum.com/forum/94...-12-valve.html

 

thanks that was going to be what i did next anyway but it makes me feel better someone else feels the same way about it 7 it has also developed a rough idal so im thinking it is prolly the lift pump not putting out enough fuel the lift pump has like 250000 on it any other suggestions if that isnt the problem