Took the vert for a business road trip today, first time with the new motor and trans, 130 miles there, and 130 back (aways good) ran 70-80 all the way, she never missed a beat, and gave me 18.9 MPG!
fyi, 68 camaro vert, 383, 9.7:1, dart heads, comp 270h, TKO500 & 3.08 out back, 2100 rpm @ 70