Power limits for LA small blocks?

Mid to low 12's?

Zero deck slugs with roller rockers on top of Edelbrock heads and rpm intake, 750 cfm (min.), 1-3/4 headers, 2-1/2 exhaust (min.)
292/.509 MP Hyd. Or a Comp 296S cam. ( Both [email protected] duration)
Go up 1 cam size and bowl port the heads at a min. And you'll have high 11's.

Proper stall with a shift kit or a killer clutch, 4.10's & 27 inch tires as wide as possible. SS springs and frame connectors.