TTA Heads flow better on the exhaust side GN heads flow better on the intake side TTA heads has a little more compression my TTA heads flowed 230@500 lift my cam is made for my heads
Originally posted by philo TTA Heads flow better on the exhaust side GN heads flow better on the intake side TTA heads has a little more compression my TTA heads flowed 230@500 lift my cam is made for my heads