It's been a while since I read Corky's book so I don't remember all the ins and outs of EFI manifold designs.

Fred has a tunnel ram and plenum design for his monster motor. Most guys use a typical 4 bbl intake with a throttle body. Others use a round throttle body on a 90* neck for a carbed style intake.

How do you determine the best manifold for your EFI engine? I know the long runner intakes are popular on the late model engines but what size plenum are they using?

My intake is a Weiand tunnel ram with a 390 cubic inch plenum on top. Is that better suited to street use, track use, or what?

We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon