Here is the heads I'd run over those stock asthma heads short of looking for 461s
Aluminum Cylinder Heads - Chevrolet - Small-Block - Performer Centerbolt - Edelbrock, LLC.
You can run the ETec heads (their version of vortec only aluminum)
Performer RPM is going to cost more.
Small combustion chambers more compression. More power. $812.60 for assembled heads from summit
https://www.summitracing.com/parts/edl-60859
That Edelbrock intake cam and lifters 522.74 at jegs
Edelbrock 3704PK: SBC T.B.I Performer Power Package | JEGS
Appears the performer and performer rpm and Etec top end is only for carbed small blocks I'd figure they'd have the whole kit available cam lifters intake heads and TBI unit.
Edit to add: you run this kit on a 350 punched 30 over, with flat tops, never mind the stroker crank you'd have 300-350 hp.
Add the stroker crank and the machining for it, you'd have 350-400ftlbs of torque.
Would only be a matter of getting a chip for the PCM, headers, and run MagnaFlow high flow cats if California legal...