3.91 or 4.10?

[BSB67]

Seems to be grabbing pretty good.

Hmmm.

Grabbing pretty good and 2.2 second 60’ seems a little odd to me.

2.2 second 60’, 14.3 second et and 93 mph are kinda odd too.

All that aside, and if et is the #1 goal, probably the 4.10.

 

[Oldiron440]

Hmmm.

Grabbing pretty good and 2.2 second 60’ seems a little odd to me.

2.2 second 60’, 14.3 second et and 93 mph are kinda odd too.

All that aside, and if et is the #1 goal, probably the 4.10.

I agree, my 64 Fairlane with it’s stock block 289 ran 14.0s at 99 mph.

 

[BVoelzke]

I agree, my 64 Fairlane with it’s stock block 289 ran 14.0s at 99 mph.

My D150 , 5.2 Magnum , shorty headers , 3 inch single exhaust , hi perf computer , 518 with shift kit and reworked lock up converter , 4.10 sure grip , traction bars , B Body Rancho Shocks , 275/60 R15 drag radials goes 2.00s in 60 ft has ran 14.98 best average 15.20 -30s at 85 mph ...4.10s made a big difference over the 3.55s it had

 

[Cranky]

Have a 69 Dart, currently stock 5.9 with fuel injection, 833 4spd , 8.75 3.23 sg.. Best time so far is 14.3,would like to get into the 13's and think I can with some lower gears.Eventually going to do a cam, tune and a few other engine upgrades. Only go to the track a couple times a year, otherwise just an around town cruiser, doesn't see the highway. I have a spare chuck with 3.23 for street use. What gears would be best for my setup 3.91 or 4.10 or would I even notice a difference between the two?

Around town only?? Go with a 4.56!! Did that with a basically stock 71 340 Cuda and it was fun!! Put the shifter in 2nd and nailed it from the get go and it would shift as soon as the tires started spinning then hauled ***. Wasn't long before it was ready for 3rd. Good stuff!

 

[PRH]

Seems to be grabbing pretty good.

If you can, walk us thru the launch technique.