[SpookSVT]

Did you readjust the tune for each manifold or use the same tune for all ovals then retune for the SVT?

I await to see the ST220 perform...

Also, I'd like to see the A/F and and spark data for all of the above runs as well as the acceleration graphs. One other thing too, when you add the plenum spacer to the SVT, make sure you measure for acceleration between having one and not. This will be key since the larger volume may very well show little decrease in acceleration time even though it gains power, making it a small net gain. Something that needs to be looked out for...