Frank, Yea that was the FSM I was scoping out when I realized the valve cover/timing cover config was identical to the diamante. The alternator brace shown in the FSM near the bottom of the engine was also there(with nothing connected) which I removed when I did a timming belt job to the engine I got curious. Frank in your opinion do you think the 89 ECU will be able to adjust to the diamante configured engine to take advantage of the HP potential? I've been running 89 ocane maybe I should make the switch to premium till I know for sure. Do you know exactly wher on the cam this designation mark is? Thanks..

99 Gen 2.5, fixing blown head gasket
89 SWB- 33's, ARB Front locker, SR rear locker/axle, SR F brakes, winch, WST Offroad Armor all Around, 2.85 Aussie T-case Gears (SOLD)
Sold: (2) 95 SR's, 86 SWB, 90LWB, 91 LWB
-Can Change a timing belt in my sleep..