Class racer---where great minds merge to spend money

[Rusty Davenport]

Questions I ask are never for those who figure they worked for all the answers and are not giving anything away. Maybe that attitude help attribute to some of the lack of participation everyone is worried about ??? I just wanted to get that off my chest with another one of my opinion poles before I make an expenditure. Always interesting.
What is your advice/opinion if you were trying to gain .02-.03 in 60 ft times in order of improvement of these 3 following changes.....

1- lightweight battery takes 25 lbs off the front end
2- 291 low gear in metric transmission compared to std. low gear
3- bump the ring and pinion up to 538 in lieu of 513
4- none of the above

1970 Nova stocker 350/300/286 ( we are at about 7100 at the stripe )