I bought an A-12 in the spring of 69, one of the first around.
My buddy was a salesman at a Northeast Oh dealership.

Two other friends had Dodge A-12s, mine was a white RR with a black vinyl top, all 727s.

In pure stock we all ran pretty much the same, this with some re jetting, more timing and a pinion snubber (I know, I know).

At a local track, 13.6s, 106 with the Polyglas.

On mine, I did a multi-angle valve job, prestolite Ign. module, Hooker fenderwell exit headers, 50 cc pump, electric pump, windage tray w/6 qt. pan, more jetting and timing, 42* total on a recurved dual point, short point set for you guys as old as I am who remember that stuff, open headers.

Was able to run a best of 12.80s at 114, still Polyglas.

The trick to traction was easy roll-out and a slow mash.

Wish I didn't drive that wet cold January night in 1971 after a few drinks, my stupidness cost me week in the hospital and a totalled A-12.

Oh well....Joe

Edit.. forgot the SSH 25 Racer Brown hydraulic in the mods
Edit #2 160* thermostat, blocked heat crossover, my memory sucks!!
More, cool can, high vol. oil pump kit, 3/8" fuel line all the way to carbs J10 plugs, this is embaressing!!