I want to have maximum flow as possible on my 98 LS. So, i've decided to go w/ an ITR AEM intake, DC 4-1 header, 5 zigen exhaust. I have a direct port NX kit, so i'm going to go big. I was wondering if i wanted to maiximize flow, or have some back pressure so i have some of the little torque i have.

 

go with the flow and maximize it cause you dont want any backpressure on the lifters

 

anyone else?

 

from what ive heard other ls owners, their heads dont flow very well..porting will definately help this situation at..dual springs on the exhaust side.
as for the block, get some rods and pistons...ull be able to spray 125 shot nicely w/ a simple setup...taking that u have the necessities to run n20 safely.
aim me and ill see if i can help ya out some more..robycold

roby

 

NOS makes torque!
Go big!