OK i no this mat have been posted but i have been doing some research on nitro engines on the market i am a club racer so funds are on a budget so last year i ran a Bog standard Picco
designed for Buggies eg 3port well all i did was set the engine up Wow!!!! it lasted all the season and kept up with the pros even surprised one or two it did go through a phew plugs and engine seals cos the pipe was not the proper fit but was good fun. i have asked various people on .21 engines price is a major thing these days i am trying another buggy engine and this is well faster then the other one it is under £100 pounds so it is possible to race on a budget
P.s the Picco is still going strong