1973 Mustang Tune-up Specifications
Engine Spark Plugs Points IGN Timing Fuel Idle speed
Cyl – Cu.in. HP Type Gap Dwell Gap (in) Man Trans Auto Trans Presser M Trans A Trans
6—-250 99 BRF-82 0.034 37 0.027 6B 6B 5 750/500 600/500
8—-302 140 BRF-42 0.034 28 0.017 6B 6B 5 800/500 575(600/500)
8—-351 165 ARF-42 0.034 28 0.017 — 6B 6 — 575(600/500)
8—-351CJ 266 ARF-42 0.034 28(9) 0.017(10) 16B 16B 5 1000/500 800/500(12)
Notes
/ Where two figures are separated by a slash, the first figure is for engines equipped with dual diaphragm distributor and the second figure is for engine equipped with single diaphragm distributors.
(9) 32-35 on manual transmission model with dual points distributor with both points set combined
(10) Is 0.020 for manual transmission with dual points distributor
( ) Figures in parentheses apply to California engine. Figure in the brackets are
For solenoid equipped vehicles only. in all case where two figure are separated by a slash, the first is for idle speed with solenoid energized and automatic transmission in drive, while the second is for idle speed with solenoid disconnected and automatic transmission in neutral.