I ended up getting the Red Top 75/35 and it fit sideways perfectly.
But the stock terminals don't really match up very well. I am not sure whether to use the side terminals or the top side battery posts.
Image #1
(In image #1) I am not sure whether I should try to hook up the battery at the side terminals (#1) or the top side terminals (#2).
Image #2
(In image #2) If I try to hook up the battery at the side terminals, the positive terminal (a) seems like it would be very easy to hook up, but the negative side (b) seems much more difficult because of the stock negative plate; the plate is extremely hard (impossible?) to set flush against the battery.
Image #3
(In image #3) If I try to hook up the battery at the top side terminals, it seems that the plate (x) could sit flush against the battery, but it would not match up with the negative wire screw (y).
Speed Demons: in your picture it looks like you connected the battery at the top side terminal posts (2 in Image #1). How did you do this? Did you use the stock negative plate? Were you able to set it flush against the battery?
Any other suggestions? Any help is appreciated, as I would like to be able to get my car up and running again.