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115435

removed old filter and used inline. for simplicity mounted the regulator on the frame rail. once pressure is set no need to have it in a handy spot.

115433

As well you got it. I don't know why I didnt check pressure first. probably too excited to play with the tuning!
live n learn.

Thanks for the info from everyone.
I to be honest missed the obvious by not checking the basics.
fuel pressure was as said by blindsquirrel and yes was the issue. I had installed a Tanks Inc....

Have a regulator on its way to replace the Vette filter with inline filter and regulator, will send update shortly.

thats what I'm leaning toward, totally agree. I'll know for the next one. unfortunate to redo the fuel system as it looks great, but performance first!!!

... I agree, the pump is overpowering the regulator in the filter, wondering if I can tune for it or best to add a in line regulator?
was hoping the PSI/Tanks inc system was plug n play as...

the job is finished minus tuning, running headers with 3" dual and cross over pipe.
Corvette filter/regulator Tanks ink 4 series pump. that does put out 70 psi.
wondering if I can tune for that or...

thanks for the quick response, After the post I did check the fuel pressure, 70 psi. seems hi. All new lines with
New Tanks Inc. fuel system including tank to fit the 83 jimmy with in tank pump,...

Test drive File 115390

Hi there All,
New here and just getting started with HP Tuners.
I have just finished a new GM crate LS3 in a 83 Jimmy. Using PSI wiring harness ECM and TCM....