Spike,
Mopar 'Dodge' was very secret about handing out any information regarding these 'few' cars in 1968.
You couldn't order one, as Chrysler Racing wanted to own SS/EA in
1968 with their 'factory-backed' cars.
I first saw one {Dick Landy} at the 1968 Springnationals at Englishtown, and had no idea that Dodge was producing them.
Which they weren't.
Dyno Numbers were never released, as they were listed as 'Secret Super Stockers'.