[john chesnut]

There are a few options. An ls3 is easily converted to a carburetor. You can keep the individual coils and use a controller and wiring harness from MSD that is made for this conversion. Or, you can convert to a distributor for the "vintage" look. A carburetor will probably make more peak HP.

Personally I love the EFI. I'm making a new engine cover that will hide the stock intake and coil packs and look like individual velocity stacks for my LS6.