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I spent quite a time with the owner of EDA when he first brought a brand new Superflow Dyno, we built a 400 cu engine, flat tappet cam, camel hump heads, fully worked, fair lump but nt ultimate. We got 475 bhp (or was it 450, I have the read out I will check later) and 420lbs of torque out of it and he reckoned that the figures would have made many of the so called massive power big blocks built in the states and sold as 600 this 700 that bhp look sick, when bolted on the dyno they did not produce anything like the claims.
An accurate dyno soon weeds out the bullsh1t from the genuine builders. Oh he also showed me how easy it was to 'tweak' the read out if required. Quite frankly I take a lot of these figures banded about with an enormous pinch of salt.
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