Yeah that was my first impression as well, almost like it was hunting or hesitating.
Per the dealer "its a 4-bolt main block with forged crank/rods/pistons, aluminum heads and .510/.540 roller cam with an Edelbrock 1411 performer 750 cfm carb and TH400 transmission." I have been reading a lot and some people say a TH400 won't hold much power. Seem like a lot of engine work for only 260HP?