Slant Six 2 or 4 BBL Manifold Wanted

2bbl: Excellent streetable driveability, torque, and mileage.

Hyper Pak (or other 4bbl setup): roaring high-RPM power, not so much on the mileage, driveability can be tricky. You'll need to make some more specific decisions on what you'd like to accomplish with your car.

Also see the do-it-yerself parallel 2bbl setup article. Photo documentation of a very well done such conversion is '62 Super Six - a set on Flickr.