1000 SDI Engine, Head Dome Question

[cohrsfarms]

I bought an engine to put into my RT summit. I thought I'd pull the head to look things over. Found the dome looked way different than my stock one. I pulled the dome and on the backside and it says Chuckaroo, 1000 SDI Lake Race. It apparently is a performance dome. I'd like to know if I can run this with factory mapping and pump gas . Any help would be appreciated

 

[sledn]

Chuckaroo is easy to find on Doo Talk forums.

 

[NM]

I tried race domes a couple years ago and lost power even at elevation. I never did try them with race fuel though.