Visit The Dirt Forum for More Information

Author Topic:   Power valves???
Dirt Maniac

Total posts: 170
posted August 26, 2005 10:44 PM  
we haven't been running them...but i have ran one for the last three shows.

I am having a carb problem on start up?!

I always seems to flood on start!

it has popped up the carb a time or two also.

I heard that it will pop the power valve every time?

Dirt Maniac

Total posts: 193
posted August 28, 2005 10:16 AM  
Yes, its a good chance if its a Holley that it did.

Easy to change it tho.

Dirt Roller

Total posts: 17
posted August 28, 2005 11:42 AM  
I have heard you can buy power valves that are designed not do that as easy through Holley...

Dirt Full Roller

Total posts: 50
posted August 28, 2005 02:54 PM  

Dirt Maniac

Total posts: 120
posted August 28, 2005 04:13 PM  
The newer holley 4412 carbs have power valve protection built-in. You can buy a kit to protect the PV in the older carbs.

When you switched from the plugged PV to a functioning PV, how many jet sizes did you reduce? You may still be jetted too rich.

Dirt Maniac

Total posts: 170
posted September 02, 2005 11:29 PM  
i fixed it...

the pick up coil was going bad.

and the tach was also causing a high rpm limiter.

stalled at 5200.

Back to the Archives