69 yenko camaro gauges
 

I heard that yenko actually used a large pointed punch to drive a hole through the firewall to run the temp and oil gauge lines throught the firewall. is this really true?
sounds kind of crude but i guess it would save some time over drilling or cutting! https://www.yenko.net/ubbthreads/imag...emlins/eek.gif anybody ever heard if this?
steve