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Michael Mattiaccio's 1969 GTO
(In His own Words)

just an update from 2008,the car now runs at 12.5 @ 107 in the quarter thanks to SDPERFORMANCE cutting my cast iron intake to Cliff Ruggles specs with a Cliffs Q-JET.

link to before performance http://sdperformance.com/customerCars_01.php?carID=67

 
   

News & Events

What's going on at SD in 2020
05.28.20
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!!
12.04.18
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.
12.23.09
Well we had a chance to test the new Northwind on a 535 pump gas hyd. roller engine recently against more >>
All News

 
 

Engine Specs.