This B210 was brought home from the local parts yard, missing the engine upper half and a few other pieces, but mostly there. After a couple years of tinkering, I have my coupe running. Needs rust repair here and there, and paint someday.
Found a new A12 short block on ebay, added a A14 mpg cylinder head (casting 990) and exhaust manifold, and 1200 intake manifold. decked the block for pistons 0.006 inch above deck. Milled the head for 24cc combustion chamber volume. Works out to 10.0:1 compression with quench clearance of 0.035 inch. Runs great on regular gas with point ignition.
Running Hitachi carb from 1972 A12 with all original jetting. 4 speed transmission and 3.89 axle ratio are original 1976 parts in great condition. Car has heavy US 5 mph bumpers. No weight removal program so far.
Average fuel economy for first run was 43 mpg running 175-70R13 tires at 41 psi. Speed was 60 mph for 110 miles with 1900 foot total vertical rise/fall from start to finish. Outside temp was -2 c with some wind.
Car could be driven across Australia tomorrow no problem. I would love to be there.
Future ideas include 5 speed trany, electronic ignition, and maybe taller axle ratio, but engine works pretty hard as it is to get the car going...so axle ratio change maybe poor idea. I'll post pics at some point. Cheers.