HI Eric
I am not sure about the other holes...... the one with 3 bolts could be for a snorkel running to the top of the engine cover...... do you have a picture fo the top of your engine cover....?? these were very late conversions and very few actually exists..... you may have a missmatched top or engine cover.
Bob C.
Hi Bob,
Is this what you taking for the engine cover
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Eric Thibodeau
1942 willys Jeep