[Super73]

I have an idea on a cam for a stock 317 headed LQ4 that I think would work very well. This would be designed for:

9.5 static compression
1 7/8 headers with 3" x pipe
Stock manifold and ported TB

It looks odd looking at just duration and ICL/LSA. But you have to understand valve events to get it. I'll try and explain.

231/240 .598/.588 105icl and 115lsa
Comp lobe numbers 13045/3653

.050 numbers
IVO = 10.5 BTDC - This is as early as I would open it due to piston to valve clearance concerns. Maximizes cyl fill due to time spent open.
IVC = 40.5 ABDC - Keeps Dynamic compression up, closes early enough to keep peak HP at a respectable rpm (6,000-6,200) Makes a lot of power under the curve
EVO = 65 BBDC - Spent gasses need time to evacuate the cyl. This gives plenty of time for the cyl to clean out.
EVC = 5 BTDC - Maximizes cleaning out the spent gasses and provides a little overlap to start pulling the intake charge through. Too much overlap hurts bottom end do to reversion.
Overlap = 5.5
Dynamic compression based on 9.5 static compression = low at 7.4

Raising compression to 10.5 static would probably pick up 10-15 ftlbs/hp across the full curve. 91 octane would still work as dyn compression would only be 8.16.