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Old 05-19-2019, 02:02 AM   #1
67 twins
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Join Date: Mar 2019
Location: Herculaneum MO (20 minutes south of St. Louis
Posts: 641
Rochester 1bbl accelerator pump orifice size?

I have a 67 C20 with 250. The orifice for the accelerator pump is solidly clogged. I was wondering if anyone knows what size this orifice is supposed to be, so I can run a drill through it? Thanks in advance for any help
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67 C10 283 T5 swapped longbed fleetside = wife's daily driver
67 C20 292 (originally a 250)4speed longbed fleetside w/original wooden bed=my project truck
67 C10 283+.060 (so a 292 as well)T5 swapped longbed fleetside=my DD
72 C1500 Sierra Grande 350 TH350 longbed fleetside=wife's fair weather truck
Can you tell we are fans of longbed fleetsides & 67s
Chris
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