Vintage 1978 NHRA Turkey Trots Orlando Drag Racing T-Shirt L

I’m not versed in NHRA history and I CAN NOT find any information online to help me backtrack the date on this tee. Was told it was the 10th Anniversary of the Turkey Trots was 1978 but I cannot verify that with certainty. The t-shirt matches the time period as the tag is unbranded and the t-shirts age lends it to be that old. If anyone can tell me otherwise it would be appreciated. Regardless, this is an AWESOME tee with minimal pill ball build-up due to washing. Lots of life left in this tee:)