How to get an easy 400 HP with a small-block Ford
 

http://static-global-s-msn-com.akama...=f&x=945&y=680Several years ago, we installed an Edelbrock Performer RPM Power Package Top End Kit to a 289 in a '65 Mustang, and while it certainly gave the engine a newfound level of power, it wasn't quite what we were expecting horsepower-wise.

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