Your ET / MPH computed from your vehicle weight of 3108 pounds and HP of 550 is 10.37 seconds and MPH of 130.26 MPH.
Your ET / MPH computed from your vehicle weight of 3108 pounds and HP of 600 is 10.08 seconds and MPH of 134.09 MPH.
3108 wt is posted on his website...says it runs 10.80.....about 4 tenths slow for it "stated horsepower"....maybe it is over stated...LOL