ECU upgrade???? trickflow top end kit

[bluestripes]

Hi All

this is my first post after reading heap and heaps of informative stuff.. though I need some help with ECU

My situation is... Owned the AU1 V8 Ute ( not XR8 ) for the last tens years with the only minor mods being pacer extractors and CAI.

Though recently a blown head gasket cooked my engine, so I've gone out and brought the trickflow 'track heat' top end kit... with the stage 1 cam. Holley 70mm TB and a 75mm Pro M MAF... which is currenlty being rebuilt on a stock 302 short engine from Eagle. ( will possibly upgrade to a dart 363 within the following months) ... I ve also considering a T5z Ford racing box from summit... with an added chunky bit for the diff... but i still need to further research whether the T5z will blot straight on.

Though my problem now is the ECU or chip... so some advice would be really welcome... so i can get the old girl up and running.

A/ would putting an ECU from an AU11 XR8, solve my performance problems or would there be difficults between the smartsheild and smartlock systems.

B/ DO i use a piggy back chip and are any of these flash tunes any good?

C/ Or - do i just reset my ECU and drive it hard to reprogram it.

cheers