5 WAYS TO MAKE IT BETTER
The contacts and condensers are generally poorly made, so it’s worth fitting electronic ignition. You can buy a kit for less than £100, which will give better starting and more reliable running.
Unless a Mini is completely restored and comprehensively rustproofed at the same time, corrosion is guaranteed. Rustproofing annually with Dinitrol is key to keeping rust at bay.
On a standard car a good exhaust can liberate 3-4bhp while also creating a more purposeful sound. There are loads of mild and stainless steel systems available, and tubular manifolds.
It’s worth fitting twin SUs for more consistent fuelling across the cylinders, to give more even running and some extra power. Alternatively a Weber 28/36DCD could be fitted.
The standard 848cc and 998cc heads struggle to breathe. Porting and polishing can increase power by 30%, with the correct needle in the standard carb.