Add 273's, 340's & 360's to the "318 Race" ?

I'm in...I'll be lining up against my son in our stock 99 Dakota R/T...hoping the little wheezer 318 will give the truck a run for it's money...we'll see in the next few weeks. Pics to follow. P.S. I question the indexing and penalty breakdown for 340 based motors when I watch my friend in his 340 Demon run 9.70's... :) daily driver, cast iron heads, no power adders lol...
Would like to here more info on that combo.