Mile High Perf Dyno Tune 340

OK, Time to figure out why things aren't working like I thought they should. The car has low vacuum, poor throttle response, and doesn't ET like it should for having 330 rear wheel HP. Time to do some basic investigation.

When I moved to Colorado from Tulsa, the car didn't run well. I found the timing way off and thought the distributor had slipped. Reset timing about 20 degrees.

But the car acts like timing isn't right. Poor throttle response, overheats (runs 190 with 160 thermostat), and doesn't have good low speed power.

So, first thing to check is the timing mark. Purchased a piston stop and found the vibration dampner is off by 20 degrees. That explains the "slipped distributor". So, if the engine made 330 rear wheel HP with final timing of about 20 degrees advance, think of what it will do with 35 degrees!

Need to order a new SFI vibration dampner to replace the 40 year old one, and then see how it runs. Should be impressive with close to the right advance.

I will let you know how it turns out.

Bob