Mobile garage

04 silverado 1500- yes it does have a regulator first off. You have to take the spider box off and it's on the rear side of the injector rail casing held on by a double c clip, problem is, they don't have the one that comes out the 4.3L motors anywhere. The ones they are selling as 4.3L regulators, are for a different v6 than what's in this truck. And everywhere sells only the one. I am looking for the exact regulator I have in my hands. Anyone been down this rabbit hole yet? Or do I have to chase my tail to find one. Please respond. Thanks