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Many thanks for your responses, to clarify : Dyno results are for petrol not lpg, on gas the engine feels just as gutless at low rpm. Ignition is via an RPI amp set at 12 deg on gas, switching looks ok with a strobe. My understanding is; that max power is achieved at around 12:1 the ECU is...

Help required please to interpret the lack of power shown on the dyno test. Can this be attributed to low compression 135-145psi dry, +10-15psi wet. Run was carried out in second gear. Box has been serviced by a specialist and given the ok. Performance on lpg feels similar to petrol. Have...