stratotanker the engine your going to be using the eme70 will the cowl need to be cut for the sparkplug boots ? i would like to get something that would fit in and not reqire anything sticking out a friend of mine is bringing over the saito 84 radial ill report back and see how it fits so far the one that does fit in neatly is the evo 77 radial but nitro yuck at almost 50 bucks a gallon here on the coast ill pass might try and take off the valve covers of the saito might give me the room i need .