Mark,thanks for your advice and time on the phone,its greatly appreciated,Smitty

resurrecting an old thread. What do you guys use to pull timing under boost? I don't recall what my exact mefi-burn cells read, but I know at 6 psi I'm at 27-28 timing. I've heard others as high as 32 and up.

I'm wondering if I'm leaving HP on the table, and what guys are using.

Thanks-

EFI 500 (540) with vortech