Mustang Owners Club Australia Forum
Technical & General Discussion Area => Technical - General => Topic started by: Wharfie66 on February 18, 2021, 11:15:35 am
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Hi guys,
I'm fitting edelbrock Estreet heads to my '68 built 289. Is it absolutely necessary to drill the 4 steam holes on each side of the block? If so what's the reason thanks.
Thanks for your help.
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https://www.mustang.org.au/forum/index.php/topic,29346.msg289985.html#msg289985 (https://www.mustang.org.au/forum/index.php/topic,29346.msg289985.html#msg289985)