W5 Pros & Cons
If you were building an n/a engine to race, okay, maybe.
For a street car with a turbo, id rather see a set of sidewinder or rpm's set up for your application.
If you're still interested in the w5s, considering their reputation, I'd have em stripped and pressure checked before I handed over ANY money!
What would you do for turbo headers for the w5s? There are no castings that you could use, like with sw's or rpm's.
(I'm assuming quality rockers, Harland Sharp at a minimum, not speedmaster knockoffs).