Intake Manifolds

[WhiteV6]

Depends on if you want to deal with a 3500 upper intake or keep a 3400 upper. Heads? I don't know what you want to do to start this discussion again.

[XanderWiFi]

It seems that adding the 3500 heads has the greatest benefit and is not that difficult to convert so I would be willing to go that route.

I actually found an article referring to a 3500 swap but it is old and I think you have made greater strides since then. ported/polished 3400 upper and lower or a ported/polished 3500 upper and p/p 3400 lower? And any accessory parts to boot.

I will be buying a hptuner professional when funds allow and will probably need some help with that too.