...Hi George,
Linkage 1:1 Just a single 'Push-Pull' Tube and (2) 1/4" Heim Joints (Simple with the Carbs in a Line). All 8 Bores come on in Synchronicity with (Mec. Secs.) I suppose Vac. Secs. would have the Secondaries come on as 'Progressive'. I machine all linkages myself from Stainless Steel. Gorgeous!
The Distributor-Less Ignition is Triggered by the Sender that replaces the Original Distributor and is driven by the cam.
I would Not mount the carbs sideways, unless it was a Drag-Race Car (Not in a Pantera). In the Pantera, I mounted the twin 600's In-Line. they had vac. secs. and side-pivot bowl Floats (Shorter). There was a mere 1/4" between the float bowls of the 2 carbs, as clearance.
No, I did Not Mould and Cast, the Casting. I start with a Brand-New, Original Weiand Tunnel Ram for 351 Cleveland and dispose of the TOP (Sold it On Ebay), then Bore the Plate and Runners to Match. The system is 2.0 inches Lower than with the Original Top. That positions the 'Butterflies' a full 2 Inches Closer to the 'Intake Valves', which Lowers the Powerband and 'Peps-Up' the Throttle Response. AND this Eliminates the HUGE Single Planum of the Original design. This also aids the Throttle Response.
The Bolt patterns were done to the .002", had to, to keep from breaking through the casting! Happy to report, NO Errors.
The Last Prototype worked 'Surprisingly', Well! A Nice 'Rumble', Plenty of Power! Very Easy to Set the Idle!
I can't seem to find the Photos showing The Manifold and Twin Carbs, Mounted in the Pantera.
MJ