Another D/Dart 275/273 question???

Remember the 1966 Dodge D-Darts were using 4.86 Gears, and had valve springs rated at #313 lbs. with valve open.

Red-Line was 7200 RPM, but shift points were 6500.

The D-Dart Camshaft was a bit of a secret back then. Many thought that it was a
Racer Brown #ST with a .512 Intake / .480 Exhaust with 284* Duration.

Camcraft, who ground alot of Marine Camshaft applications already had a
.495 Intake / .505 Exhaust with 284* Duration cam-stick that was quite responsive
between 4000 and 6500 RPM, and that was used for the D-Dart.\

Distributor, Chrysler Part #2642242 (Factory Modified), with vacuum advance removed. Mechanical only,
set for 25* advanced at 1000 RPM.

Timing set at 10* BTDC

Points with a tension of 17 to 21.5 ounces, and point gap set between .014 to .019