Originally Posted by chevyallred
I like the 1st im going to look for some reviews on it thanx bro
Not sure if you will find reviews but the N21-5T is our go to engine here locally for quality, tunability and most importantly price. Great engine at a great price. Only consideration is that being 5 port you are in the mid range as far as the torque vrs top end battle. We run pretty short tight technical tracks around here so I've been running a 4 port. I have a few other engines for when we travel like the Novarossi Kappo 7 port and 9 port. If you have a longer track go with the 7 port mentioned above.
Regardless that N21 will make you happy.