Re: Cam fine for build?? Too big/small??
That cam is not big for a 454. I agree with others, it could use more compression though as others stated, the intake closes fairly late, so it may seem lazy down low, but, you also have 454 cubes in your favor. If you can get rid of it, there are better options out there, personally, I would choose something with around the same duration, but quite a bit more lift. I have a similar cam in a 333" motor, about the same lift, more duration, and the intake closes even later, while the idle, and vacuum does suck, the street manners are fairly well, and it's over 100 cubes less.
The only Mustang I'd ever own is a Fender.
'68 333" Camaro
'14 5.0 Mustang