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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 13.2@102 in the quarter with 3.23 gears,just installed 3.55 gears,need to go back to the track


News & Events

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!!
Well it's been a while since we had an update on what's been going on at SD so here's a quick overview. more >>
Northwind Intake manifold Dyno Testing.
Well we had a chance to test the new Northwind on a 535 pump gas hyd. roller engine recently against more >>



Engine Specs.