What? A stuck needle & seat on a Holley?? :shock:
Well blow me down.....I aint never seen that before! lol :lol:
I suspect a tiny peice of rubber from one of the hoses or some other peice of thrash got hung in there and when u took the needle & seat off, it fell out, it happens.
Anytime you work on the fuel system be ready for something like that, I always have a helper looking at the carb when I first prime it up, just a expensive learning curve Rigsby.
I too run a pre-filter and a post filter.
Cp