i need more power

[BrianK]

2008 wrangler 4 door, with 4 inch lift, 35x12.5x17 procomp tires. what can I do

 

[TerryMason]

I think the most effective answer to to regear. Not cheap though!

Are you still at stock gearing?

 

[Bounty__Hunter]

Re gear or smaller tires. Or a Hemi swap. Regearing might look more affordable when compared the the Hemi swap.