My favorite Chevy SBC story. Most never have the opportunity to do this, and half don't believe me. I had in my shop, at one time, three SBC's, all 350's. One was an old dirt track engine, one was the new dirt track engine, and one was a motor I was building for my buddy's 69 GMC truck.
I had always heard from my dad about GM's lack of tolerance control, and how the reason why SBC's came with adj valvetrain was because they couldn't get their **** in the middle of the block.
I took a NEW cloyes double roller chain, and put it on the three engines, one loose, one REALLY loose, and the motor for the 69 was so tight I had to tap the cam gear on the cam with a mallet.
Dad WAS right, Chevy cant get their **** straight.
All the GM heads I tell that too, cal me a liar though, you have to see it to believe it.
