What are you looking to do with the car?


Both motors can make serious power on stock motor. I know Glenn made 6xx on stock bottom SR( race gas) and I know someone recently made high 5xx on stock motor KA (E85), surpassing Corys previous record of 518 (pump gas).

Obv they are more reliable when fully built. IMO the SR is more costly in certain areas. I am also a KA-T guy, however if this car is going to be used in any type of auto x or road racing I would go with the SR for weight distribution.