OK, so I bought my 84 VR solely for the purpose of safing gas on my way to and from work. And so far, when compared to my Dodge Ram 1500 Quad-Cab 4x4 With the Hemi, it's doing what I need it to do. But I'm wondering if I'm running it at the proper RPM range to maximize on my mileage. I was reading in another thread that these engines seem to prefer the higher RPM's over lower RPM's. I've been running mine low so hopefully it'd burn less gas. Am I on track or do I need to keep the revs up?