Well there's plenty people on here with experience of building similar combo's like this for street and will offer better suggestions than me but here are my opinions at least>

He's right on the 240 heads for a street car, generally you want to see max hp out of the smallest port possible

Wrong about the edel carb, holleys don't leak, don't know where he got that from, I ran nothing but holleys on my street/strip car and race only car with zero leaks/issues for 10yrs I was in this madness.
I would run an 850 or 950DP on that.

A solid ft cam close to .600" (326cfm@.600 on the 240's) with dur@.050 in the 240>250's on 108cl with around 10:1+cr would work well although no expert on this.

Performer rpm would work ok but I would be inclined to lose some torque with a stick car as it could be too lethal on the street with a 512 although it sounds as if thats what you want.
A TF intake or Victor would be my choice.

A true 600hp so 630+ on a dyno with addition of ancillaries in a 3800lb car with your rear chassis set up hooking good could run as good as 10.7's@124mph@5600rpm trap speed with 28" bias slicks/3.73's, not the most important to you but worth noting perhaps.