BadgerType
Resident ***hole
do both with nitrous and you will become the king of the streets
It's not about the compression with the j30a1 its about the crappy cast internals and head flow. J32s and beyond come with forged internals which of course increases ability to hold power more reliably. I've been trying to run a top mount m90 SC setup but the j30 can't take it. So 3.2/5 swap will be first.
the j32 do not have forged internals, they are cast just like the j30. hell, not even all j35's are forged.