I didn't use the tubing from the smog pump. I just plugged the heads while they were in the car using a 9/16bolt and 3 washers. One time I had one wiggle it's way out so I just tightened it down more and has worked like a charm ever since. Also I installed them by jacking the car up and getting them in like so. I also had my handy 3 ft ext. Thanks Snap-On .