what size exhaust

i have a 1776 with twin 40idf and a 120 cam and need a new ehxaust and was wondering what size to go for 1.5" or 1.5/8" any help with this would be great. thanks

Reply to
jex
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The info we need is

1) what heads and headwork do you have? 2) do you need heater boxes?

John Aircooled.Net Inc.

Reply to
John Connolly
1 1/2" Mark Detro Englewood, FL

66' panel

71' westy 73' baja
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Mark Detro

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