Need to drop a trigger wheel in your Type 4 without dropping the motor? Need to send signal to your Micro or MegaSquirt box? Need to send precision computer driven spark to your plugs? Need it all in one, easy to install unit?
You need PMB Performance's TSW Combo. Driven off the cam/distributor drive, it's all the precision your Type 4 needs. Inside is a trigger wheel spinning along driven off your old distributor/camshaft drive gear. On the side is a custom, preset side reading sensor. Capping everything off is a wasted spark distributor/coil to send spark to your plugs.