Power valve?

Dana Fitzpatrick · 07-16-2016, 05:20 PM

Just to be clear,it does have a pv in it now,same one that it had with automatic.

Chevy55 · 07-16-2016, 07:08 PM

Power valve is only affected by engine vacuum. and it must be closed at idle The # on the PV body is the inches of vacuum it will open.
Check the engine vacuum and use a PV a couple inches higher.
Think I got it right.

BLIND MULE · 07-16-2016, 08:24 PM

Maybe around a 3.5 PV just a guess?

HandOverFist · 07-16-2016, 08:30 PM

I've been advised to do away with any PV...no more guess work.

BLIND MULE · 07-16-2016, 10:59 PM

I never run them my homemade carbs get the job done!

07-16-2016, 05:20 PM	#1
Dana Fitzpatrick Member Join Date: May 2009 Posts: 148 Likes: 4 Liked 10 Times in 6 Posts	Re: Power valve? Just to be clear,it does have a pv in it now,same one that it had with automatic.

07-16-2016, 07:08 PM	#2
Chevy55 Banned Join Date: Nov 2014 Posts: 324 Likes: 625 Liked 179 Times in 89 Posts	Re: Power valve? Power valve is only affected by engine vacuum. and it must be closed at idle The # on the PV body is the inches of vacuum it will open. Check the engine vacuum and use a PV a couple inches higher. Think I got it right. Last edited by Chevy55; 07-16-2016 at 07:11 PM.

07-16-2016, 08:24 PM	#3
BLIND MULE Member Join Date: Dec 2002 Location: Alabama Posts: 318 Likes: 0 Liked 0 Times in 0 Posts	Re: Power valve? Maybe around a 3.5 PV just a guess?

07-16-2016, 08:30 PM	#4
HandOverFist VIP Member Join Date: Oct 2013 Location: Gulf Breeze, FL Posts: 1,651 Likes: 8 Liked 33 Times in 16 Posts	Re: Power valve? I've been advised to do away with any PV...no more guess work. __________________ Rich Taylor I/SA - 321

07-16-2016, 10:59 PM	#5
BLIND MULE Member Join Date: Dec 2002 Location: Alabama Posts: 318 Likes: 0 Liked 0 Times in 0 Posts	Re: Power valve? I never run them my homemade carbs get the job done!