I think it’s a reach to say he was a Top 30 guy. Maybe more like Top 400, if you believe this from Baseball America:
Porter has a big, sturdy frame at 6-foot-5 and 240 pounds. Although he’s been up to 94 mph in the past, he pitches more in the 89-92 mph range. He’s a slow-twitch guy who lacks athleticism, has some effort to his delivery and has trouble throwing consistent strikes. His secondary stuff (a soft curveball and a changeup with split action) is below average and scouts seem content to give him three more years at North Carolina to figure things out. Porter shows light-tower power from the right side of the plate. He broke the Utah high school record for career home runs this season and will play both ways if he winds up in Chapel Hill.