Cruising in 4th at 40mph, along with others on equal matched stg4 175 kits, twist for more grunt and I get left behind, same on hills its painfully slow. Have just fitted a 26mm jettex, could this problem be with jetting, which is as Af's set it up. How can I get more grunt.
1. Altering gearing, presently 150 italian box as standard
2. Rejet......to what
3. Retard the timing, presently at 19 (elect.)
4. Fit expansion in place of 42mm clubman
Advice based on your own experience would be great guys.
Rick
