RE: Engine size comparison (SPE26 & G20EI)
The G20EI is smaller than the SPE.The cylinder is smaller so theres not much to cut. You need to purchase standoffs as its not provided to equal the distance of the spe.The carb sticks out about the same distance and supplied welded muffler is bigger and heavier so you might need to make adjustments. You can use the spe muffler by drilling out the holes so that it fits the G20 or the scott ellingson version.Its supposed to increase rpm by a bit and you lose over 2oz in weight.The main bulk of the G20 is at the back so it should'nt matter.It has better performance than the spe!!