I need to replace the distributor in a 87 pick-up with a 318. The distributor that is in it has no vacuum advance on it. It does have the vacuum line that goes to the control module on the fender to control the vacuum advance. My question is can I use a distributer with the vacuum advance on it and just leave the vacuum actuator capped off on the distributor or do I need to find a distributer with out it like the one thats in it?