4g13 tuning parts

[benrs]

hi all .. just wondering could any1 tell me is there any parts available to tune said engine its a 4g13 in a 1994 mitsy colt like cams , extractor 421 ect i know some might see as pointless just drop in a 4g92 mivec but no fun in that and i want to keep this lil car like it is as i had 1 years ago 1 of my very 1st cars, have had many of them 2x1.3 1x1.5dohc gen1s and 2 gen2 mivecs luv um there great cars :) so this is just a little project ta have and keep for years ta come when unfortunatly they probly be all gone :( thanks for any help