I've got a proform main body that both accel pump circuits seem to be clogged solid. Bowl and metering blocks are clear, as are the nozzles, but I can't get any carb cleaner through the body. I can spray either direction and nothing. I bought some cheap little carb brushes

https://smile.amazon.com/gp/product/B076LJSY3P/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

but I can't get them wormed up in there, maybe too big?

How do I break the log jam?
Thanks