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    What in tank fuel pump should I use in 5.3 ls swap

    I have a 97 k1500 work a 5.3 with all the factory cpu and fuel injection..it has the stock in tank pump for the 5.7 vortec still in it..the truck starts and runs fine till it warms up then it stays back firing and I think it's because the fuel pump isn't getting the correct amount of fuel and...
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