Unmetered air through oil filler?
I have a '90 5.0 with a Paxton supercharger. When I installed the kit, I removed the hose from the oil filler to the throttle body. I plugged the throttle body where the hose went, and my supercharger kit came with a hose that goes onto the oil filler and runs into the air filter cover. I...
forums.stangnet.com