Im tuning 80 shot now and I'm still getting between 80 and 85 psi which is a tad rich. I have the largest jet I have in for the bypass tee (.55) and I'm planning on purchasing a couple more large jets to attempt to bring my fuel pressure down.

I know that the it usually takes .05 of a jet increase to get the fuel pressure to do anything so I'm wondering what jet sizes you would recommend I purchase. I know they are only 7 bucks but I'd rather not waste money on a .56 jet for example if it's not going to do anything.

I was planning on checking out a .60, .65, .70, .75.

Any thoughts are much appreciated.

Thanks

 

There are a lot of variations, I got 85 psi with a .038 jet with my old NOS kit. If you have some small ones that you will never use again, you can try drilling them out to larger sizes if you have the proper drill sizes. There is a url that shows them, I just don't have it anymore because NX uses all fixed sizes and I don't mess with them anymore.