Ash had 413rwhp posted by AEFL92 on December 03, 2003 at 01:26 PM
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Of course ASH touched his timing. I know of a few more people that have the supporting mods on stock turbos and injectors on 15deg timing that might make 400rwhp but of course we wont know unless they dyno.
But Jeff is right, timing will need to be bumped up for 400