you actually cant upgrade the dizzy's on our cars but thankfully our dizzy's are actually pretty well made, i reccomend getting some nice upgraded ignition wires and a ignition coil, get a nice cone air filter, contact Rocketman for a really good cone filter adapter and the upgraded ECU known as the Rocketchip, best upgrade you can get for the capri, getting a fmic with all 2.5" hard pipe makes a huge difference along with a nice 2.5" exhaust upgraded bov is needed, boost controller you can upgrade the fuel pump wireing. that would make a HUGE difference what i listed