I had the opportunity to run my '74 Dart Sport on a Mustang Dyno yesterday. I'm from Katy, Texas and a performance shop called Bumberas Performance upgraded my carburetor from a plain worn out holley 750 vacuum secondary to a Holley 650 HP Ultra. It woke the engine up to an insane degree and made it feel like it came out of hibernation or something. :D To my surprise when I picked up the car the paper read that at the wheels the car pulled only 215 HP :wack: Although that was only at around 4500-5000 rpm and could of gone a little higher, but still... just from driving the car it feels way more than that.
Has anyone had their mild built small block car on a dyno before and were your numbers around 215 or so ? Did any of you get your hopes up on your build thinking the numbers would be higher than anticipated? Full setup specs detailed below on my '74 Dart sport build.
- 1985 Dodge maxivan 360 engine
- mopar m1 dual plane intake
- lunati voodoo cam - Advertised Duration 256/262, Lift .454/.475
- Holley 650 HP Ultra
- Engine bore .030 over
- cheap summit racing brand headers
- 727 trans with 2k stall converter
- 8 3/4 rear with 3.23 gears.