Comparison 340 / 289

OK...more fuel to the fire. I am Mopar faithful, owned my 340 Swinger for 23 years, owned dozens of mopars through the years including a few Hemicars as I written about on other posts. HOWEVER, growing up, my Dad worked for Dodge but restored Mustangs, so it only stands to reason that I have had my share of those too. The early K code Mustangs were advertised as having 271 horsepower and they sure did. I had a '65 K code GT fastback, 4 speed, all stock that ran 14.03 @ 102 mph. Also, my '67 Shelby with the 306 horsepower 289 ran 13.92 @ 104 mph. Now, to add credance to your comments about the 390 my '67 GT hardtop with the 390 and 4 speed could only muster a 15.29 @ 99.