NoI hear that. I bet these engines would be happy with an auto tune. Something with an o2 sensor. I wonder if the block off plate changes the a/f ratio.
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Ok gotcha. I do wonder if that then inturn affects exhaust velocity. Sounds like the popping a guy will get if he removes a catalytic converter😏. I know nothing about that 😆No
The air is being pumped into the exhaust, not the combustion chamber, so it does not/cannot effect the air/fuel ratio.