I bought my Mast VVT cam for my LY6 last fall, and at that time a Mast Motorsports cam and header only LY6 was making a tick over 500 ponies at the crank. Not too shabby for a low buck build. If I were building an all out drag race engine, I'd go solid roller non VVT for sure. But for a street cruiser, with an occasional auto cross, the VVT is a great all around package.
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