no the crank angle is still in the distributor. The sensor on the crank shaft is the crank fluctuation sensor. The ecu uses an input from the distributor and cross references it to the crank fluctuation sensor to detect missfires. You can use the obd2 b16a distributor with no problems. Some obd2 distributors are missing a wire. This wire is the solid blue tach signal, obd2b takes it's tach signal from the main ignitor wire farther down in the harness. On these distributors you can open them up and put a wire on the empty tab on the ignitor then run the wire out and you have a nine wire distributor.

Obd2 preludes moved the crank angle out of the dizzy to the crank though.