waht are some good engine mods to do that will give me more power and torque? i have one engine in that i will end up rebuilding for performance if i didnt crack the block in it and the motor that will be replaced by it needs a timing belt but i want to take and at least mod it some bfore i go and drop it in are there any good mods that i dont have to do too much work with im already enlarging the valve seats for a set of epn valves so are there any perofmace cams i can use or new ignitions that could go on it bfore i gets dropped in

 

Regearing your diffs is the most effective way to offset the loss of power from switching to bigger tires.

 

If you have the motor pulled, DEFINITELY do headers (especially if it's a 3.0)

 

year, motor, tranny???