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Just fit an ls1 ecu to it
Hehehehehe

Or just buy a manifold and fit injectors and fuel rails and efi fuel pump
And just fit a Haltech ecu or a vipec or any other good ecu or whatever
Your tuner is best at tuning

Not many places in Australia use or sell the pre tuned plug and play stuff
Let alone know how it all works or any pros and cons
Rocket might sell similar stuff but if its new technology they probably aren't clued
Up on all the workings of each product.
Like a lot of shops these days they import stuff and sell em without knowing much about it
Then when u have issues they pass the buck so talk to people who have used the product not just sold it