Here’s one of those “that’s impossible” cam stories.
One of my friends/customers was pretty big into Chevy 409’s.
He’d been running one that had been hopped up pretty good, and one day it let go.
He had a decent stash of hard parts, so he built another one.
The one that blew up had a Crane cam in it.
He liked the cam, so he ordered another one for the new build.
Gets the motor going...... doesn’t seem to quite “have it” like the previous motor.
And...... the exhaust note on one bank seems “different”.
He does all the tuning under the sun..... no change.
This guy is a real hands on type of guy, who has a good sense for how **** works.
So, he degrees all 16 cam lobes.
The ex lobes on one bank are all advanced 25*.
Double checks, triple checks...... same every time.
Calls Crane..... gets the “its impossible” speech...... but they want him to send it back for checking.
They never admitted anything, but they did send him another cam....... and that one checked out fine.
And the exhaust sounded normal...... and then the motor “had it” again.
