Quote:
Originally Posted by G3RSTY7
Wow is that just with Si impeller or did you change the jackshaft as well?
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Jackshaft is stock. If I was strictly running e85 I would have had the 3.47 jackshaft installed but I'm on flex fuel (91 octane). Seb had to dial back the timing on 91 as it is on 12.86 boost.