4afc twin cam 1600. not looking for performance as such,as it goes alrite for what it is, just tune ability. is a bog stock rebuild but will be changing cams later, just a stage 1 or 2 cams so no valve springs required for a little more torque an reves. no extractors yet but will get some for it, motor ran perfect befor the rebuild, misses ran it dry of oil an developed a bottom end knock witch forced rebuild, I love this lil car is why we spent the money on it. THANKS FOR ALL THE HELP SO FAR BOYS, BLODY AWSOME, as I know nothing bout what can be changed or interchanged, or whats available for these things. I understand there built for economy but a well tuned carby will still be economical witch I can sort out no worries, any wore input will be greatly appreciated an I will be attending some rolla events to talk face to face with some of you, cheers will post to ya replys