Thread: 5.5 head
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Old 09-02-2023, 03:54 PM   #19
Y-Blockhead
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Default Re: 5.5 head

Quote:
Originally Posted by Synchro909 View Post
As a matter of interest, what is the general opinion on maximum advance for a 5.5:1 head. I run a max of 22° for a 6:1 but I realise a 5.5:1 would be more.
A little different setup as I have a Phillips Auto Advancer (original NuRex) but I have my total advance set @ 28° BTDC with my 5.5 head. I have it so I can retard the timing with the original advance control if that is too much on hills
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