Bxx1,
For that kind of work, I would call Brian @ B&D in Van Nuys. I have known him for many years and trust him. A good honest shop with lots of small block Ford experience and very reasonable rates.
B&D Racing, LLC
818.781.7474
Also MAECO Motorsports in Northridge has an excellent reputation. My experience is that they specialize in prep and maint. of track cars and as such are considerably more expensive.
MAECO Motorsport
(818) 701-1923
Jason