My "T" is a little gutless!

[JohninKuranda]

Just looking for some suggestions about what I can do to get a little more oomph out of my Model T. The engine is a 1915 Canadian made.

I seem to lose power when the engine is under any strain - like going up a hill. On the flat I am lucky to get 45KPH (28MPH). Down hill is obviously faster!

I have adjusted the transmission bands and inspected for wear. All seem okay.

I have also checked the fuel line - that is clear. I have rebuilt and swapped out, several times, the carburettor. I have checked the coil boxes, they are all fine and producing the correct charge. Changed the wiring loom - the old one was a tad old and somewhat fragile. Changed the spark plugs. I have now tested the compression - one each cylinder it is 40PSI - give or take 1-2 PSI. I am a little unclear as to whether this is an acceptable level of compression.

Does anyone have some ideas, comments or suggestion as to what else I can try?

Many thanks
John