I have a 95 cummins after 2200 it just flatins out no more power. i had the star screw turned all the way forward an it didnt smoke much at all. then i moved it back some an moved the plate all the way forward it made alittle diff. on bottom end but still flatins out. Has anyone had this problem or now what i can do to fix it.

 

welcome to diesel bombers check this thread out and see if it will help with your problem
https://www.dieselbombers.com/12-val...0-a.html:humm:

 

your stock gov springs are your problem.

 

The stock govenor springs only fuel to about 2200 and free rev to about 2500. I would suggest installing a 3000 rpm govenor spring kit to help your top
end power.

 

Go with 4,000gsk and be done with it. you'll thank yourself later

 

I would upgrade the valve springs before putting the 4k kit in.

 

Depends on what you want to do with the truck. I didnt upgrade springs. my truck never sees 3200 rpm. but if i want to i already got the Gov springs. Id rather do the GSK once. do 4000's and be done with it. imo

 

Just be careful then.

 

as long as you set them right and get your idle right, you might have a slight surge but nothing to bad. 4k's are fun even if you do drive like a grandpa. i just look at it like this. if you want to do the 3k's thats fine, still will wake the truck up. but if you wanna do more with the truck just do it and be done with it. just because you have them doesnt mean you got to use it

 

when i turned my star screw all the way forward shouldnt it really blow the smoke? because mine didnt