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michael mattiaccio's 1969 GTO GTO
(In His own Words)

1969 GTO,462 Pontiac Power,T-400 trans,9.5:1 comp. runs [email protected] in the quarter with 3.23 gears,just installed 3.55 gears,need to go back to the track


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What's new at SD in 2021
We're busier than ever at SD CNC porting and machining heads and intakes and putting top end packages more >>
What's going on at SD in 2020
We're keeping plenty busy in the shop in this crazy world we're all living in. Demand for our CNC ported more >>
End of 2018 is fast approaching!!
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Engine Specs.