Reply to "First time on a Dyno"

FWIW,

PCNC has had a few dyno days over the past 10 years. We have found that bone-stock low-compression L-model cars put out about 230 rear wheel horsepower, plus or minus a few. With a Holley and Edelbrock Performer intake, power went up closer to 240-245. Headers added another 10 hp or so.

It sounds like your motor is far from optimized. The basic ingredients are all there--now it's down to tuning. You could spend years screwing around in back alleys, changing this and that and evaluating with the seat of your pants.

But since you have access to a dyno, I suggest you fully instrument the car (measuring various parameters with a Sun engine analyzer, and an O2 sensor up the tailpipe) and then see why it's not performing as it should be. It could simply be a timing issue, or incorrect carburetion. It may take a full day of running, changing, running again, but typically a car will drive away from a day like this with another 20-30 hp under the hood, sometimes more.

To me, that's money well spent!

Mike (265 rear wheel hp on a Dynojet, and my 650 dp went way way lean at high rpm. So, a new fuel pump, fuel pressure regulator, 700 Holley, complete MSD ignition, and now I'm ready to establish a new baseline and then begin tuning....)