I used to work at a dealer years ago, I run my own repair shop now butt just knd of ended up a dodge specialist after that first dodge job. High efficiency stuff has always interested me, not just MPG but decent MPG with some power also. I started onto the high compression kick when my dad bought a new geo metro and it would get 50mpg and had 210 PSI cranking pressure and ran best on low grade fuel, I just had to know why we couldn't do that in more hot rod type stuff.