umm new era makes it. i would personally go with a high-end .12 the engine will be driveable and even though the cost may shock ya at 1st when u figure in a 1/2 decent .18 or .21 and a con. kit you will be higher than say a Rb concept novarossi,rex,picco or whatever. just whatever engine u get make sure its a nova based and a non-compsite carb[>:]