What positions should i switch to Rb or WR?

freshman year which im still currently in i played football and was a 2nd string wide out and starting strong safety. i did pretty good at strong safety. now im wondering weather or not i shold switch to running back or stay and wideout.... im going to be a sophmore next year nd i will still be playing on jv.... right now im 130lb and 5'9 and can run a 40 in 4.75 seconds...by the beginning of the season i will be about 135-140 lbs probably 5'9 1/2 since im still growing and if i work hard probably run a 4.6 in the 40 yard dash. the thing is i suck at benching as my max is 100 my powercleans are 55lbs and my sqauts 95 lbs max. what position do you think i should play or switch too.....btw i have good hands too.