Holley power valve sizing.
05-31-2014 | 04:08 PM
#1
Thread Starter
Registered
Joined: Jan 2002
Posts: 4,612
Likes: 7
From: ALTO, MI
Holley power valve sizing.
OK - it has been a long time since I had to tune a HOLLEY carb.
For some stupid reason this engine is running way rich in the Daytona and it ran perfect in the SCARAB.
I am running 1050* F at 3500 RPM and 1250* F at 5000 RPM
I am fouling out the engine.
It idles at 5 to 6.5 inches mercury.
I forget what number power valves I need - I am thinking 45's
It's a HP950
Gonna have to mess with it tomorrow.
The new engine is going to be fuel injected.
I bought a O2 meter but havn't gotten it hooked up yet.
For some stupid reason this engine is running way rich in the Daytona and it ran perfect in the SCARAB.
I am running 1050* F at 3500 RPM and 1250* F at 5000 RPM
I am fouling out the engine.
It idles at 5 to 6.5 inches mercury.
I forget what number power valves I need - I am thinking 45's
It's a HP950
Gonna have to mess with it tomorrow.
The new engine is going to be fuel injected.
I bought a O2 meter but havn't gotten it hooked up yet.
06-01-2014 | 09:11 PM
#2
Registered
Joined: Mar 2006
Posts: 432
Likes: 0
From: Lake George NY
Run a power valve 1/2 vacuum reading at idle. He's a link to holley power valve tuning http://forums.holley.com/entry.php?4...r-Valve-Tuning
