Hi Randay i think you will very surprised with this engine.I ran mine today at a club meeting which is at the brendale track where they ran the tourer worlds last year and it surprised mysalf as well as the rest of the drivers who nearly all run murnan engines,i did'nt win i came 4th in the A main.i would'nt say that it is a great competition engine but will be perfect for a clubby,whatever plug is in the engine which is a 5 keep using them.Give it a go mate
