Hi guys I've been running a 7 port for about 6 months now had a few issues with the carb when i first got it but was supplied with a new 1 free of charge and have not had a problem with it since.

I resently added a turbo head to it and I am running a novarossi long cold plug with a hong nor 2047 pipe with a medium smooth flow header, 25% nitro 12% oil and I'm getting about 8.5 to 10 minutes from a tank in my 8ight depending on the track, gearing, carb restrictor etc.

I also own a novarossi plus21-5t and i have to say that GO engines definately run as well it not better in some cases as I brought it as a club motor to save the rossi but don't really want to change it out

they are definately worth giving a try just watch out for your starter box because man they are tight when they are new