Drove it out to dinner tonight and it definitely freed up some extra ponies. The only other engine mod (besides 100% Mobil-1) I'm running is the PV2 muffler. I've got a second PV2 ready to be installed on the IronMan and I'm considering getting another intake from Mike for it as well. The Dragon will be focused on street/rallycross while the IronMan will be the daily driver/off-road rig.