You can change sparks and wires without opening the doghouse. If you turn the wheels to gain access in wheel well it can be done.
To open the doghouse take a look under the doghouse and make sure you have turned the latch away from the floor position. Once you see it clear you will have to pry a screw driver blade down between the floor and doghouse and pry up, use two screwdrivers to keep what you will gain in lifting from falling back down to floor level again. Try to only pry as little as possible or you will crack out the fiberglass doghouse. Be patient it takes some time its very tight because of the rugs.
I'm a thin guy so can manage in between the tires in well. The wires will plug into the coils and place the tin rings back on the plugs with orange insert inside of them do not discard, before putting insulated sock over the tin caps on plugs.
Gap the plugs to .045.
Here's some information from
Oemy's site.