the oil failed and made something wrong
The 1974 Chevy truck has a mechanical fuel pump with a built in pressure regulator.
21
It controls / regulates the fuel pressure.
That depends on what engine it has.
It is in the throttle body.
One could purchase a '66 Chevy truck directly from the Chevrolet manufacturer through their website or via telephone. A '66 Chevy truck can also be found at online automobile traders and dealers such as AutoTrader.
Engine oil pressure, cooling system pressure, ac pressure, fuel pressure?
The fuel pump is kaput.
Need engine size.
One could purchase a Chevy Silverado SS truck from their local Chevy dealer or one could check out their local used vehicle dealership. Ebay is a good place to find a Chevy Silverado SS truck if you don't mind paying to have it shipped or traveling to pick it up.
use a pressure guage hooked to the scrader port on the fuel line.
There are many places where one can purchase a Chevy pickup truck. One can purchase a Chevy pickup truck at popular on the web sources such as Auto Trader and eBay Motors.