1985 Ford Bronco Data Tables picture

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Spreadsheet showing RPM, vacuum, and base timing values

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This document displays a table of engine timing specifications based on RPM and vacuum levels.

AI caption October 2019 · Photo 1474 of 2004

Base Timing 12 Vacuum o 1 2 a 4 5 s 1 a 9 1o 11 12 1a 14 RPM 500 12 12 12 12 12 12 12 12 12 13 17 19 23 26 26 750 14 14 14 14 14 14 14 14 14 15 19 21 25 28 28 1000 18 18 18 18 18 18 18 18 18 19 23 25 29 32 32 1250 22 22 22 22 22 22 22 22 22 23 27 29 33 36 36 1500 25 25 25 25 25 25 25 25 25 26 3o 32 36 39 39 1750 27 27 27 27 27 27 27 27 27 28 32 34 38 41 41 2000 29 29 29 29 29 29 29 29 29 3o 34 36 4o 43 43 2250 30 3o 30 3o 30 3o 30 3o 30 31 35 37 41 44 44 2500 32 32 32 32 32 32 32 32 32 33 37 39 43 46 46 2750 34 34 34 34 34 34 34 34 34 35 39 41 45 48 48 3000 34 34 34 34 34 34 34 34 34 35 39 41 45 48 48 3250 34 34 34 34 34 34 34 34 34 35 39 41 45 48 48 3500 34 34 34 34 34 34 34 34 34 35 39 41 45 48 48 3750 34 34 34 34 34 34 34 34 34 35 39 41 45 48 48 4000 34 34 34 34 34 34 34 34 34 35 39 41 45 48 48 4250 34 34 34 34 34 34 34 34 34 35 39 41 45 48 48 4500 34 34 34 34 34 34 34 34 34 35 39 41 45 48 48