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Air flow and compression are the ways to increase power. Here is a list of what we have done and measured 140hp at the wheel
ported cylinder head
milled more than 0.050" from surface of head Swedish dynamics valve springs
Swedish dynamics red series turbo intake cam
Stock exhaust manifold and 2.5" exhaust
Group 9 larger throttle body
Advanced ignition timing
The basic observation is that this engine responds well to more compression and advanced ignition timing if thefuel is good enough
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