I knew threw alot of guys goin threw them 2.5 so I spent the money and had it completey done right by professionals it was some money but well worth it theres is prolly some guys it that class that have spent that goin threw a few motors building them themselves
when i got the truck we changed alot of things and after i seen a few races them boys are pushing stock motors to the max truck is buit to compete with the best.but yes the motor is legal and will pass tech.