If you want to make the attempt, you can always remove the valve covers and try retorquing the head bolts to 80 lb/ft... might work, more likely not. To do so requires some tools and mechanic's skills, though - since the upper plenum and other "stuff" has to be removed to get to the valve covers.

Frank

'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum