Well, i already bought my conversion kit. I had no vacuum ports available and my engine doesn't have enough vacuum. It has a lot of valve overlap. I was just wondering if it was harder than the drum brakes to push? I didn't think they were that bad to push. Also i was tired of fighting the steering wheel every time i hit the brakes. It got a little scary plus i need new wheel hubs and they don't make them anymore for my car. With the disk brakes i don't need the hubs. I even got new spindles.