Hey guys haven't been on in a while but got a new p-51 60size and I'm going to be changing from four stroke to the g20 zenoah gas engine. This is my first time with a Gasser and I'd like know if you all have any advice from the change. I wont say I'm proficient in the 2 stroke or four stroke area but I have good experience. Just so you'll know this is not my first p-51 as I had a four stroke 91 in the other one. Thanks