[ACK]

Did the carb have a tag to help select the rebuild kit? If not, Rochester B carbs had 2 different style accelerator pump plungers, round and flat. Yours looks like it should have the round one based on the fuel filter location, but checking doesn't hurt ... better safe than sorry. If you have the round plunger, the kit you selected should work, but with one word of caution. The round style plunger came in 2 lengths (2-13/16" vs. 2-3/4"), if the kit comes with a replacement plunger, confirm the length is an exact match or there's going to be issues. What condition is the float? Is it in one piece and with no holes? Fun fact, 90% of all Rochester Bs are warped at the horn, so don't be surprised if it leaks a tad at the front. Have fun with the rebuild.