Question about gears 3:73 Vs 4:10's

[bad70nova]

I am driving a 78 Bu i drive it on the street and take it to the track occasionally.

When at the track (Keep in mind 1/8 mile) I run consistant 7.65 - 7.67

I am wanting to run a 7.50 index and not wanting to rework the motor this year.

The question is do you thin changing form 3:73 gears to 4:10's will get me close to this index or is it even worth the change out. The gears wont hurt me on the street as i am running a 700R transmission.

Your oppinions and suggestions will be appreciated.

 

[DOUG213XRJ]

I would like to think it will help but im not sure how much.

 

[holtjohn]

how well does the car hook at the track, and what is you engine specs?

 

[bad70nova]

I have MT Street ET's I only launch at 1500RPMS and it hooks fine 99% of the time.

Motor

383 Stroker

Putting out 425 - 450HP

If you need more details i can give them to you

 

[holtjohn]

what is your cam specs? and how tall is your tire?

 

[bad70nova]

Tires

255 60 15

Cam i can not truley remember i built this motor 2 years ago and have done to many sice then to remember but i think it was .480 / .480

 

[holtjohn]

using Drag2003, and guessing on some of the varibles, it looks like if you can keep it hooking, it says you will pick up about 2 tenths in the 8th. So it looks like it would put you closer to your goal.