vacuum at wot

[rayruner]

I got a blown malibu 02 making 8 lbs with wot heads , mizy cam , tog headers , and some other things , it has a lot of miles and gets some blowby under boost, i would like to have vacuum in the oil pan when in boost, would anyone care to say what they are doing for vacuum under boost. thanks

[caffeine]

Simplest option is slash cuts into the exhaust. Otherwise a vacuum pump.

[geoffinbc]

Agreed. When I was looking a while ago there were lots of used Moroso pumps on e-bay for cheap.