4 degree ignition advancer

[PaulSmith]

First full tank with the advancer fitted doing my normal commute and 197 miles took 18.0 liters, (49.75mpg) which is a few percent better then I normally get ~180 miles for 17Litres (48.1 MPG). Not a big enough difference to catagorically say the mpg is improved, but worth keeping an eye on.