Would I be able to get into the 13's with 6psi with my current mods or will I need to bump it up to 8-9psi? Thanks

 

What are you running currently?

I am getting damned close with only about 320-330rwhp in a 4x4. Main advantage is the stall converter. Get one of those and on 6psi I dont see why you couldnt hit 13s all day long.

 

my best in the 1/8 is 9.5 @ 76mph.

 

6psi on what? procharger, whipple, turbo?

 

Then yes, 6psi on top of what you already run will put you deep into the 13s I run 9.1@96mph in the 18th so you shouldn't have a problem if you can get traction.