[Jim Downard]

Seems there are several factors that could effect hp significantly. I have 1 3/4" headers with DV's side pipe mods. I'm running an Edelbrock Pro Flo air cleaner (which by the way we took off on run #2 and #3 and it actually made 1-3 hp less without the aircleaner. Good ad for Edelbrock, no flow restrictions there.) While standing next to the dyno, I saw three cars remove there air cleaners and gain 20-30 hp. Also, I have a 3.55 axle ratio. Now, my understanding on how the chasis dyno works is based on the amount of time it takes to get the 8000 lb. drums spinning to the cars max rpm. Let's say that with 3.55's @6000 rpm I'm turning 120 mph. I'll garantee you it will take less time for my motor to get to 6000 rpm if I have 4.11 gears and only have to reach 100 mph. Then maybe the results would have shown 370 or 380 rwhp. It's all apples to oranges anyway. I really just wanted to know what my air/fuel ratio was so I could finish tuning the carb. It was just a bonus to find out the hp and torque numbers. I'll leave it at this. "I AM VERY HAPPY WITH THE PERFORMANCE OF MY COBRA!"

Thanks for the input guys.

Jim Downard