The stock fuel system would have a filter/sock at the tank pickup, a canister filter after the fuel pump, and then another filter under the Carter AVS fuel inlet. I'm thinking the only good filter in your system is the one that you changed.
Well,I don’t have the whole history of everything that was done to the car,but I do know the fuel sender assembly is brand new and was changed recently. I’m assuming they would have changed the strainer on the pickup line. I know I would have had I done it,but who knows. There wasn’t much sediment in the old fuel filter that was on the car when I bought it,but I did just change it.
I do wish,as you said,that it had the original carter carb. I’m not sure why they ditched it in favor of the edelbrock. The car ran like a top when I bought it though. At a light it idled so smooth it was hard to believe the engine was on.