I was going with information that Kelsey gave me. In '69, the Camero switched from the Speedway to Polyglas in April of '69.

In '68, Polyglas showed up on the '68 Hurst/Olds and the 68 1/2 Cobra Jet Mustang.

The F70-14Polyglas red stripe is available as well as the Speedway.

Snarl softly and carry a BIG stick 1969 Hurst/Olds Pure Stock 13.23@ 103.1 and the a/c blows cold! Rusty Small