Ok, the magnum model is exactly the same mechanical to the normal model.
All that is differnt is that its the Capella so its got a hand full more KW but not that many..
As for the compression...8.3:1 is the standard compression as for the magnum i dont know..
Im going to get myself a magnum valve cover air cleaner and front grill someday when i find out the wreckers prices..
And some models came out with Mazda on the rocker cover while others didnt say a thing...i had a 84 with nothing on the cover and i got a 83 with Mazda written on the cover so i swaped them
Can you get some pics ??
Also did you see if it had the honeycomb grill and if it had Magnum written on the Air Cleaner you can also see if its a Original Magnum by looking at the Compliance plate the model will be something like TC instead of GC.
