Reply to "347 all aluminum Ford Stroker"

...I Agree with David B.!!
I am Not a Pilot! But I use to be a 'Crewchief/Flight Engineer' on Hueys, Cobras and Chinooks!
You need an 'Accumulator'! Perhaps Two! And even That is ONLY going to give You a Few SECONDS of Protection, when the Pick-Up becomes UNcovered!
For Cars the Brand name was 'Accusump'. But Be sure to use one Designed for Aircraft, regardless of what the Engine 'Thinks' It is Insalled In!
I see You are aware of the Possibility of becoming 'Weightless' in level flight, and that the Oil in the Pan, WILL be Up into the Crankshaft, and Not 'Down' around the Pick-Up!!

What happens when a 'WindShear' Knocks the Plane 'Up-Side-Down'??

You might think about adding a Oil Cooler along with those Accumulators!

...And then We come to the 'Distributor Gear DRIVE PIN'!!
You might think about going 'DistributorLESS'.

I like the Idea of the 'Back-Up' Dual Coils/Ignition...Would a 'MagNeto' be More Reliable? No?

I'am just thinking of Your Life!!

Your work is great, impeccable and shows a thourough understanding of Mechanics and Engineering!! Congrats!

BUT! We must not forget the fact; Even though the Engine may think it's in a Car, it IS in an Airplane, a job it was Never Designed to Do.

I know of one person who used a Jaguar V-12 Engine(All Aluminum),in a similar configuration, Except He had the Propeller Mounted Directly to the Crankshaft. (No Gearbox Speed 'Increaser/Reducer'??) The 'Pull' on the Crankshaft caused the Main Bearings to Seeze-Up, the 'Thrust' bearing could Never take it!
He was Killed!

...and there are Many other Problems, such as..What keeps the Spark Plug Wires from coming Off? You already know Aircraft 'Plug Wires' SCREW-ON, so they don't come loose!

It's All about the Engine Not being Designed for the Specific Job!
Being a Pilot Yourself, I know You are aware that All Aircraft produce their 'Own' specific, resonance, in High Frequency. Aircraft are Not 'Grounded'(from Vibration) as Cars are. It can do Damage, fasteners become loosened, cracks 'Run', and things fall apart. A 'High-Freq' (Vibration) as we use to call it...can cause the Primer in a Catridge to become Hot enough, from Friction against the Magazine Wall, to Fire Off a Bullet!.

I Wish You Good-Luck,
And Safe Landings!!