Well I've thrown the towel in on getting the GMT800 lines to work.
I was taking a look at the GMT400 lines, and thought "why not replace the low pressure hose with high pressure hose (crimped of course) cut the TBI connections off and add the LS connections". Well I'm looking for the OEM crimp-on QD connectors, but haven't had any luck finding them yet. Dorman makes PNs 800-120 & 121, but those are not crimp on. Of course if I can't find OEM, I may cut the OEM ends off the GMT 800 lines, and have them crimped to the GMT400 lines. If that doesn't work, I'll have my hose people set the Dorman parts up to be crimped on. At the engine end, I'll will have nylon braided just like the GMT800 factory lines. All hose would be 300psi braided nylon.
This seems like the best choice, is there a reason you didn't go this route?
Is the steel not up to the task of 60psi?
What do you think of this idea?
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