Hey Charlie, Congratulations to you and your fine son! I also won that race in the "modified class" in 1978.
As for the "Hard top" I had the first canopied raceboat ever in a race here in Miami in 1986, and APBA after making me make change after change, the morning of the race decided NOT to let me rce my 28' canopied Pantera, they claimed my Recaro race car seats were not safe, they felt the same about my 5 point harness!!! how about that? Later, Pepe @ Pantera.