1971 Chevelle Distributor Specifications

    L6-250
145 HP		 V8-307
200 HP		 V8-350
245 HP		 V8-350
270 HP		 V8-400
300 HP		 V8-454
365 HP		 V8-454
425 HP
Breaker Gap   .019
Cam Angle   31-34 29-31 28-30
Breaker Arm Tension   19-23 28-32
Distributor Manual 1110489 1112005 1112042 1112044 1112057 1112052 1112075
  Automatic 1110489 1112039 1112005 1112045 1112057 1112052 1112054
Timing (RPM) Manual 4°
BTC@550		 4°
BTC@600		 2°
BTC@600		 4°
BTC@600		 8°
BTC@600		 8°
BTC@600		 8°
BTC@700
  Automatic 4°
BTC@550		 8°
BTC@550		 6°
BTC@550		 8°
BTC@550		 8°
BTC@600		 8°
BTC@600		 12°
BTC@700
Distributor CENTRIFUGAL ADVANCE
Crankshaft Degrees at Engine RPM		 VACUUM ADVANCE
Crankshaft Deg. In. of Mercury
  Start Intermediate Max. Start Max.
1110489 1270 14 @ 2300 24 @ 1400 8.00 22 @ 16
1112005 1000 14 @ 2300 34 @ 4300 8.00 20 @ 17
1112039 1320 12 @ 2200 20 @ 4200 8.00 20 @ 17
1112042 1120 15 @ 2200 28 @ 4300 8.00 20 @ 17
1112044 1160 15 @ 2400 22 @ 4200 8.00 15 @ 15.5
1112045 1335 11 @ 2400 18 @ 4200 7.00 15 @ 15.5
1112052 1143 14 @ 2000 22 @ 3900 8.00 20 @ 17
1112054 1310 21 @ 2350 28 @ 5000 7.00 12 @ 12
1112057 1260 16 @ 2400 30 @ 4400 8.00 20 @ 17
1112075 1200 24.4 @ 2310 32 @ 5000 7.00 12 @ 12