building a FAST legal small block

I would like to keep it pump gas friendly so under 10:1 ?
Cam, should I just go straight to a solid roller ?
It needs to sound stock so Im guessing 112 or 114lsa and maybe 220-230 @.50" tops ?

What about heads ? Im thinking a port job for this type of build is going to be a lot different then fir headers and single plane ?

What about the intake and exhaust manifolds ?

Im looking to be the fastest car out there but I would like to see some mid 12s.