hks cast low mount manifold or a top mount drift/6boost manifold
just looking for opinions on the best set up flow etc
mods already done rb25
arias pistons 20 thou oversized
eagle rods
knife edged crank and balanced crank
9:1 comp
head extensivly ported, cams of custom grind,solid lifter conversion etc
greddy plenum
garrett gt3540 with 64 housing 44mm tile wastgate
lots of other custom mods that i dont really want to get into