At 89 ft lbs you'd be replacing the heads :happyhappWelcome! Remember he's talking inch/pounds not ft/pounds.
I just did em by feel when I replaced mine. If you're putting on a CAI and a brace (like a C&L) on the front driver side cover using just a bolt through the cover, remember that the rubber cushion/washer part isn't on that bolt. You'll over tighten it and break the bolt or bend the cover if you go by a torque number on that bolt.
+1, I seem to remember someone using ft lbs when they were supposed to using inch pounds and they obliterated whatever they were tightening. Couldn't have been this forum though since we're way too smart At least we try to avoid a problem before it happens :gringreenAt 89 ft lbs you'd be replacing the heads :happyhapp