Thanks. It cost a lot of money and made a lot of power. The average BB Mopar that we see on the dyno make around 600 hp with TF240 heads and 700 hp with the larger TF270 heads. There isn't 100 hp difference between the heads, the guys with the 270 head typically run higher compression and big solid rollers., The 240 guys tend to run pump gas and hyd roller cams. Over the last several years it seems like there is always at least one BB Mopar with TF heads on the build board. Sometimes there are two or three of them stacked up in the queue. Very popular combination.