The 1967 Trans Am season was not a success for Horst and the Alfa Romeos as the FIA had homologated the Porsche 911 as a sedan and they blew the opposition away that year. But Horst Kwech's driving skills had been noticed by Ford Motor Company and Horst was asked to drive the Shelby Mustangs for the 1968 Trans Am season and he did not hesitate at the opportunity.
The Mustangs battled engine issues all season and they often blew in a big way. These were Tunnel-Port 302 engines that were built by FoMoCo in Detroit. The only races won by Shelby that year is when his team built the engines ! Shelby even pleaded with Ford to go back to the more reliable 289 engines but Ford would not agree to that.
Horst's only win came at the second to last race at Riverside while the Penske / Donohue team won the 1968 Trans Am Championship in their Camaro.

(Horst Kwech on his way to a win at Riverside in 1968. He often had number 2 when he drove for Ford.))
Some more information at this site regarding the 1968 Trans Am Ford Tunnel-Port engine.
http://www.hotrod.com/features/histo...nnel-port-302/
(Ken Hyndman )