I believe it was 230 horse.
get a chiltons repair manual from the library and look it up.
The bumpers for a 1972 Plymouth will fit a 1973 Plymouth duster with a little fabrication.
1972 Plymouth duster strait 6 firing order
a727
340 V8 bhp is the power of the Plymouth duster manual 1972 engine and its maximum speed is 110 mph.
go to the library and get a chiltons repair manual from 72.
I believe that is 2+1/2 degrees BTDC
This is listed in your owners manual. It is also listed on the drivers door post. If you have no owners manual and the decal is missing off the drivers door post the stock size I have found to be is E78-14 according to all the web sites I know of with this information.
Yes, there are a few suppliers for them both chassis and fender well.
That would be 15" rims on that truck.
1.7 - 1.9 btdc...............