I have mention on here many times I was a street & strip racer and worked part time in my buddies speed shop/ garage in the best part of the muscle car era.
Well my buddy was a top mechanic and more of a "whisperer' in regards to getting out every bit of power out of a engine. He was good with Mopars, great with Chevies and superlative with his favorite Pontiac. Over the course of time he raced a few different "Tin Indians" on the strip and if fact held a few national records back then.
We had a lot of Pontiacs come through the shop and Dan would do his magic on them. No matter how well it ran you could tell the difference both on the street or strip after he had done his job.
One of our Chevie 396s got beat on the street by a Pontiac GTO that came from Royal Pontiac. By chance the car showed up at the garage to get a "Dan Super Tune" a couple weeks later.
We recognized the car and during the work we found out that it was not as told us by the owner a 389 tri power but a much bigger 421 tri power. Well no wonder it ran so well. The owner had bought the car used and said he did not know it had a changed engine in it.
Found out later that Royal Ponitiac was well known in putting in the bigger engine in the GTO and claiming it was just a good running 389!
Well we had the last laugh as we got our hands on a 455 built it up tremendously and puled the 421 out. At least in that era there was no substitute for displacement
.
Well my buddy was a top mechanic and more of a "whisperer' in regards to getting out every bit of power out of a engine. He was good with Mopars, great with Chevies and superlative with his favorite Pontiac. Over the course of time he raced a few different "Tin Indians" on the strip and if fact held a few national records back then.
We had a lot of Pontiacs come through the shop and Dan would do his magic on them. No matter how well it ran you could tell the difference both on the street or strip after he had done his job.
One of our Chevie 396s got beat on the street by a Pontiac GTO that came from Royal Pontiac. By chance the car showed up at the garage to get a "Dan Super Tune" a couple weeks later.
We recognized the car and during the work we found out that it was not as told us by the owner a 389 tri power but a much bigger 421 tri power. Well no wonder it ran so well. The owner had bought the car used and said he did not know it had a changed engine in it.
Found out later that Royal Ponitiac was well known in putting in the bigger engine in the GTO and claiming it was just a good running 389!

Well we had the last laugh as we got our hands on a 455 built it up tremendously and puled the 421 out. At least in that era there was no substitute for displacement

Last edited: