When I ordered a set of #50’s from Inglese, I ordered a few more items as he assisted in my initial baseline jetting. The set of #45’s Pump Jets I have, he said might not work as they might be too small. The #50’s he sent, a few of them had to be re-sized. He also mentioned these were difficult to source as the modern/newer carbs are different and parts for the older carbs are harder to come by.
Good luck, Earl J