I have a earthquake with the .21 motor, Truck has been solid minus keeping it tuned right, don't went and found settings for it, got it running right then put it up took it down the next time and with no luck cant get it running again. I have a .18SH laying around and no issues with it. Everything bolts and fits fine, except the .18 has the twist style carb, https://www.urchobby.com/proddetail.php?prod=TE1809D1
Is there a way to make this work still using the slide carbs servo? or do I just need to buy https://www.urchobby.com/proddetail.php?prod=TE1809B2
Any help would be great. the .18 came of a Volcano S30, and attempting to put it on a 1/8 earthquake...