Might wanna look at spec clutches bro.
you say your goal is 300rwhp, well so was mine, then it was 400, then 500..hehe. Id say go for a spec stage II, its built for slicks incase you wanna run them as well. Well built for slicks at the power level your speaking of and can handle over 400rwhp.
http://www.specpwr.com/
good luck
Dan
95 rio red cobra #2021