In 1958 and 1959, Barzda was noted for fielding a Chevrolet-powered sprint car at a time when nearly all competitive sprint cars had Offenhauser engines.
In 1973 Leonard would return to Vel's Parnelli Jones, driving the #1 Samsonite Parnelli VPJ-2-Offenhauser.
In 1946, he piloted the Koopman Offenhauser and finished 4th in BSMRA points, competing at tracks from Seekonk, Massachusetts to Akron, Ohio.