Re: 83 351 windsor; need some tips
First: Do you take into acount that your speedo is off due to the larger tires? If you haven't had your speddo calibrated, you are showing 13% less miles per tankful than you are actually driving, same as your posted speed on the dash (you are going 13% faster than you are reading). Second: The stock gears, and tall tires are robbing torque. You can go two routes; different gears to get back in the correct power band, or increasing your power output to compensate. To get into the approximate power band, you can use a set of 4.10:1 gears. You mention wanting a locker, that would be the time to do it. I myself have limited slip still,so I don't have experience (yet) with the characteristics of the locker. You can go the power route, which in the long run is waaay more expensive. The best thing to do is to make your system more efficient. Free up the exhaust, and try to flow more air to the carb. If you are more adventurous, you can go for a better cam, and do some porting of the heads. A better intake, and matched carb are also the way to go. Don't forget that if you match your gearing in the axles to your tire size that you may not be flogging the beast as much to get to speed... another fuel saver.