The ecotec V6 in the VS model produced 147kw at the fly
The Silver top Rb20det is 164kw at the fly....
However the torque would be better in the V6 as it had a storter stroke and larger bore....
Either way you can buy a million parts to make an rb20 better but you cannot just pick up a catalogue for a buick V6....
Nice job.... I have wired a VB with an rb26 and a Vk with an rb25 in the past few years and it was not easy at all... But plenty on fun...