Jeep 5.9 magnum

I got the 360 engine in my 1998 ZJ 5.9. Looking to make it faster, I hope to run mid 8's in 1/8 mile hopefully N/A no nitrous. Without stroking engine. Right now it's stock.

any tips or ideas? Some say doing roller rockers 1.7 will give me more gains then cam. But if i do cam and roller rocker. That should net me some decent gains. Then exhaust. Headers. Tune. Should be good for 300/310hp.