ORIGINAL: britbrat
Sarge -- obviously I'm not communicating well. Is there some reason that you won't tell us what kind of Thunder Tiger it is? Is it a GP version (& what size), or is it a Pro version (& what size). This REALY MATTERS -- they have very different carburators & different tuning methods.
Also please answer the questions asked, or we can't help.
it is a gp abc engine.