Thats pretty good. But with that much power, you should be pullin on me in the quarter mile, not the other way around. Your 60' time is almost .2 better than me, yet, im finishing quicker in the quarter. I know a manual trans has a lot to do with that, but an extra 25hp would deifnately even things out. Yours actually doesnt spike as bad as most of the ones i've seen. I remember some guy claiming his GT had 343rwhp or somin like that with just a tune. Dont think he ever posted a dyno chart, but im pretty sure it had a peak in it just like that.