06-09-2020, 10:41 AM
If the Reliant carb is off a sidevalve motor it should work at least as well as a standard A7 carb; the power output of the Reliant SV motor was about the same as the late Ruby IIRC. A light special should easily beat 50 MPH on the flat even with a bog standard motor. After doing the obvious stuff like checking the points gap hasn't shut down, I think it would be worth adjusting the timing and seeing what the result is from advancing it from the current setting.