six pack power valves

[PDFROGMAN]

running a six pack set up on 383 with the MP hemi grind cam shaft 280/480
pretty sure i popped the power valve running super rich now
any suggestions on which valve to replace it with?
thanks

 

[70RR2GO]

it seams like I'm hearing that you need to find out what you vacuum is and run approximately 1/2 of what that is. I guess that's a general rule of thumb.

 

[PDFROGMAN]

I kind of knew that,
i should have worded the question a little differently
I was curious what other guys have done any other combos, 6packs can be a little difficult to dial in

 

[70RR2GO]

ya, I got a long road a head of me. been reading every forum and write ups that are out there. I'm building a 505ci and after ordering a new base plate and center metering block, it's getting a little confusing. after setting my new carbs up for the kill air bleeds that are interchangeable, ben at promax hade told me to start with a 4.5 right from the get go. i'll be running the engine on a test stand, so i'll have plenty of time too get it close before going in the car. Good luck for both of us.

 

[440+6]

I run 4.5 on mine.

 

[PDFROGMAN]

stock motor?
if my memory serves me write I think I have 11" of vac in drive
thanks for the input

 

[440+6]

My motor is pretty stock except for cam, I have about 12 inches of vacuum in neutral 875 rpm (4 speed).
The 4.5 PV recommendation was from Bob K. (Aka Mr. Six Pack).