Here's a picture of H-O Racing's 1965 Tempest "Renaissance" 326-powered at Irwindale. In 1973, it ran mid-11s in NHRA-legal E/MP (11lb/CID).
Here's a picture of H-O Racing's 1974 Trans Am 455SD-powered at Pomona Winternationals in 1977. Later in the year it set the National Record in SS/KA at 11.31sec at 118.9mph.
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Craig Hendrickson, the "H" in H-O Racing Specialties.
http://www.OriginalHO.com