gutted afc?

I recently bought a p-pump. Took the afc housing off and noticed the arm slides on the shaft without any resistance. There is nothing more then the shaft it slides on in there and there was no fuel plate at all. Person I bought it from said it was being built for a pulling truck, I got it very cheap so I'm not surprised if its not complete but I was just wondering if this is what is meant when people talk about gutting the afc housing? Everything inside the pump looks normal otherwise. I plan on sending it to Seth for some tuning but if its missing parts I'd like to find them in a junk yard rather then buy brand new since every part in there is $1 million. Anyone have pics of what a gutted housing looks like??