What exactly does a blow down tube do?

The Best V8 Stories One Small Block at Time
too keen on extra plumbing and holes, if it's unnecessary.
The new rollbar rules come in higher than my car ran stock.
That bites. Have to see how serious the local track is on
that one. Maybe I can get away with more at the "street
drags" than the "real" NHRA type events. Not gonna ugly
up my love machine, just cause it might save my life or
something. Priorities, man, priorities.


