Remember I've been having some problems with no power on my new engine? Well I just hit 401 miles on a mazda rebuild and the thing feels like it just doubled it's power. I guess breaking it in did help. That was just really strange.....

 

Break in ALWAYS helps! Some engines can take even longer to really get seated. My uncles Dodge Dakota went about 10K before that OHC V8 really kicked in! He is quite impressed with it's power now!

 

Same with my car. i thought i mess up in my vaccum hose. I was getting no boost and it drove like crap.

 

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Funny...I had just hit 7700 miles....and all of a sudden..it runs sooooooo smmmoooooth, just like new!