Which Plugs to run 1989 Johnson

[johnson1989]

J110TLAEM Which plugs

Are these correct?

34 0387633
Add to pick list SPARK PLUG, 1L77JCR 4 7
34 0432424
Add to pick list SPARK PLUG, QL16V 4 7 Optional


Whats the differnce? they are both listed in the parts list

 

[johnson1989]

Re: Which Plugs to run 1989 Johnson

Also What they should be gapped at? - Thanks