How can the speedmasters be garbage? I paid $440 with shipping for mine (bare castings) on black friday 2020, so with good hardware I have $8-900 in the heads. Best 1/8 mile on mine in a 3320lb car was 7.21 at 94mph in the 1/8th, seems like good ET economy to me. Granted the tricklflows are much better but for what I have into them I would challenge anyone to beat them. I have 3.5 seasons and about 500 passes on the motor to this point.