Here is another ad for Amalie Oil featuring the 1966 Mustang of Dale Wood. It states his "289 Mustang was undefeated in SCCA National events in 1966." Looking at the results from the 1966 season in the Dave Friedman book, "Trans Am: The Pony Car Wars, 1966-1972," an entry for a Wood/Van Beuren driven Mustang did not finish the Mid-America Trans-Am Sedan Championship race at Mid-America Raceways, Wentzville, Missouri on June 12, 1966. There is also an entry for a Wood/Dundas driven Mustang that did not finish the the Marlboro 12 hour race at Marlboro Park Speedway, Upper Marlboro, Maryland on August 14, 1966. There is also an entry for a Wood/Dundas Mustang that did not finish the Pan American Endurance Race at Green Valley Raceway, Smithfield, Texas on September 10, 1966. If it is the same car it had great success in SCCA national events but couldn't finish any of the three Trans Am races it was entered in.
As you can see, the ad appeared in the April 1967 issue of Motor Trend.