| Carb and Airbox Modifications 120 HP, 78ft/lbs Torque | |
| Improves midrange and peak power and torque INC ALL DYNO TIME | £100.00 |
| K&N air filter | £35.00 |
| total | £135.00 |
| Dynojet stage 3 kit, etc | |
| St3 Dynojet kit | £90.00 |
| St3 K&N air filters (removes stock airbo) | £80.00 |
| Labour and Dyno time | £100.00 |
| total | £270.00 |
| High Lift Cams etc. 130 HP, 82ft/lbs Torque | |
| Exchange High Lift Cams | £170.00 |
| Heavy Duty Clutch Diaphragms | £20.00 |
| Engine work labour to strip & rebuild, dial in cams, set valve clearances, fit clutch, etc. | £200.00 |
| total | £390.00 |
| 1216cc Big Bore, Gas Flowed Head, Cams etc. 150 HP, 90ft/lbs Torque | |
| 1216 Piston Kit | £450.00 |
| Cylinder Block Boring & Honing | £120.00 |
| Gas Flowed Head including 3 angle cut seats etc. | £380.00 |
| Exchange High Lift Cams | £170.00 |
| Gaskets | £40.00 |
| Heavy Duty Clutch Diaphragms | £20.00 |
| Engine work labour to strip & rebuild, dial in cams, set valve clearances, fit clutch, etc. | £360.00 |
| total | £1,540.00 |