Originally posted by BrainTeased
Hi thanks for the reply AFM
im planning to get the old one AFM with the black head and ABC p/s design 3 port 
this model has also got the turbo head right?
also as you say this model has carby leaks if i put in a novarossi carb will it still be easy to tune? i want to get this as its only $139 USD from RC mart and the EVO 2 is $219 USD
on a different topic, what makes an engine easy to tune? the carb itself or the actualy engine/ Piston and sleeve design?
I would highly recomend you to get the Evo2, it's a world of difference.
At
www.speedtechrc.com you can get it for $189.90. Those $50.00 are worth.
Novarossi carb will work OK.
Ease of tune is a combination of many factors, but mainly when the engine gets old and looses compression, is when it's impossible to tune well.
AFM