I still have my original heads with 2000 miles on them.

My issue is if the injector position causes any of the cyl to go lean. If those get screwed up, I'm even more in the hole.

I'm totally willing to try the split port and dyno it back to back with the ovals, since I have both setups and easy access to a dyno. However, I don't want to screw up the engine and be another few thousand dollars down.