With the exception of a different cam, lower compression ratio and the addition of a turbo and EFI, Spiro still uses the same basic 402 big block combination he used ten years when he won the 1996 NMCA championship.
Spiro’s Camaro Z-28 was running with nitrous in the low 8’s in NMCA Super Street when he won the championship in 1996. Twelve years later he’s running a second and a half quicker with an EFI single turbo combination.