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Wayne Allin's 1969 Firebird
(In His own Words)

1969 steel body Firebird with fiberglass front clip and doors.Cromolly cage certified to 8.50.


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.
535 IA2 built by SD Performance- KRE raised ports by SD Performance Best ET 8.608 @ 158 mph