Trick Flow 240 heads (possibly cc heads from 78 to 84, to lower compression to around 10.5)
Can you do this yourself? Very complex work, should be done with a flow bench

Pistons: dome shape, static CR, valve reliefs, quench clearance?

Cam with 240-245@.050
That reduces total choices to 50
LSA? Intake/exhaust bias? Installed ICL?

the average of suggestions between 230-250
Why?

Pushrods?

Most likely Harland Sharp rocker arms
Intake ratio? Exhaust ratio?

Boffin Emeritus