As much as I would like to be able to tune them myself, It is my only car and I can't afford to have it off the road. I had mine tuned by Recarb @ Kawana (Sunshine Coast). Really need to have individual vacuum ports in the intake manifold so I could balance them myself (Makes it a shitload easier to tune them with a vacuum guage). O2 sensor/guage would help tune the fuel, In the next carnation of my motor I want to have 4 x 02 bosses in the extractors so I can start learning to tune it...