Quote:
Originally Posted by Chris Hardy
Wouldn't it be easier for everyone, if NHRA just calls it: Every SBC head must be Less than or equal to 185CC's, have stock diameter valves? Then they just inspect for grinding and pour? We all make a ton of power, and inspection is easy. (FYI, the pinch cross section on the Dart 185cc heads are smaller than the stock intake manifold cross section) Thus, the heads will be a substantial gain once a good valve job and flowing is completed.
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They already have a class where they pour the heads and have stock valve diameter. It's called Super Stock.
Sure glad I decided to quit running Stock. Getting more screwed up every year...