Okay So I have decide I am done with the trx 3.3 stock engine on my revo, I need some opinions who have had both a picco .26 max and an o.s. .21 engines right now my problem with my 3.3 is it can't hold a tune so I would like to know which one holds the best tune and is more reliable and won't give me near as much
Problems as the stock engine any editionial details about both engines pros and cons would be fantastic too
Thank you in advance for the replies. God bless.