It's all a matter of opinion; that's the bottom line.I prefer my 12v over my 24, even to this day. I like the ease in which maintenance and repairs are performed on the 12v. Diagnosing is less painful, to me, on the 12v, due to the lack of electronics. And I like my right foot pedal physically connected to the throttle lever, rather than rely on the electronics to do it for me. We all know how finicky electronics can be.as for tuning and making power on a single income, 12V is the way to go. Case in point: 400+hp is easily obtainable for under $150-200 on a 12v. $200 gets you squat for a 24 valve.At 400_hp, my 5 spd 12v got in excess of 25-26mpg on the highway at 65-68mph. My 6spd 24v has never seen north of 18, since I've owned it (both on 265-75-16s and 3.55s.)The downside to the 12V is what I experienced; rack stuck full forward in the IP while passing someone, creating a runaway situation. It was quite scary. A reman'd Bosch pump was cheaper than fixing the old one. Oh, and this was at 105k mi.