Yes but you get some really good top speed out of it. Conversely I have a 5.0 stock except for intake and Edelbrock 1409. Boat was originally a 4.3/2 blbl/190 hp, that PO cracked. I put the engine in kept the 1.81 ratio drive. Best speed with 22” enertia was 47, 21” rev 4 is 48. I run two large...