Looking around for early prototype 454's I found John Greenwoods 235 or 236 MPH Corvette. Greenwood’s Sebring ’75 Corvette holds the official all-time highest speed on the banking at Daytona International Speedway of 236 mph, set on February 2, 1975 http://www.superchevy.com/features/1505-corvette-prototypes-and-concepts-trend-setting-part-9/ Then I see this. http://www.corvettereport.com/john-...5-corvette-racer-sells-for-only-300000-video/ Then I see this about a Ford claiming the title with 222 MPH. What gives? https://www.topspeed.com/cars/car-news/ford-racing-smashes-daytona-top-speed-record-ar160704.html The only thing i can think of is the Top speed on the Greenwood vette was not published.