| :That isn't enough compression for the motor to run. You need at least a hundred pounds of compression to create combustion from what I understand. You understand incorrectly. If that was the case, the engine wouldn't run at part throttle high manifold vacuum conditions when the dynamic compression ratio is far less than 100 psi Is the throttle propped all the way open? It doesn't matter if your throttle is open if the balance tube is off
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