Any thing Sam Blumstien from C.O.M.E Racing says, he could back up on a dyno...or a court of law! He did a B Com and then decided he liked passing out ponies more than just counting monies. The EPA haven't anything nasty to say about his cams or the Consumer groups his power claims because they are based on years of grinding and building and dyno testing his own gear. And his relatives live in the US, which is were he got all his information and skills from. The V8 focus is there because that's were the money is. The six cylinder market place is fickle, but V8 boats , race cars and off roaders are always in fashion.
Crow Cams and the Spence brothers are more accessable due to there ablilty to grind cams, not shove whole engine combos out the door.
Each to there own, and all that!
Those grinds above look very good, but notice they are designed for non-cross flows, and have a lot of extra duration on exhast to cope with potential catalysts or poorer flowing cylinder head castings. They fit the engines they are designed for, and there is choice like you wouldn't expect for an engine that died off 20 years ago!
