Re: twin 140 zukes on a 23cc?
Merc typically underates on the power....so a 115 opti might come close enough to a 140 zuke. The 175 optis is the biggest displacement for the block (135, 150 and 175) like the 140 is in the zuke line.
ETECs would be great but expensive....but probably in line with the 175 optis costwise.
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