I have been fortunate to have owned and enjoyed both a 351 and a 460, both crate motors, both on a Superformance, and both built by Billy Andrews of HRE with very similar suspension components. I must say the SB felt a lot more nimble when driven hard in the twisties but the BB is just as capable; one just needs to build up one's biceps a bit more before driving the BB. I did not track either car but streetwise, the driveability of the BB won me over. By driveability, I mean being able to cruise and chug along below 2000 RPM around town in 4th or 5th without bucking and rear end clunking. Also, with the BB, when I'm cruising at highway speeds at 65, there is no need to downshift to quickly accelerate to 80. The SB just did not have that grunt to do it gracefully. At anything below 2000, the 351 Windsor would buck and complain; although above 3000, that motor would scream scarily. the 460 BB will chug along all day at 1500 RPM in any gear and just blipping the throttle will get you up there in a hurry. I miss flailing the SB around the nicely repaved streets surrounding the old Bridgehampton track. Doing the same thing in the BB makes it seem more sedate, even civilized, at the same scary speeds. It must be the "throatier" exhaust note of the BB...
