Need to grab a bolt or something to block both PV's because I'm pulling right at the PV's vacum limit and I want to test blocking them off.
What is the bolt size and thread I need.
Thanks

 

don't block them off, a street car needs them. Fix the problem the right way. I run the 4.5 PV in my car with no issues

 

Not going to permanently but right now I need to test it and see if I can get it to run right first.
Will sit there and idle ok but loads up and dies after I try and move it short distances or even when I drove it a 1/4 mile it started out ok and then lost all power. Lucky to limp it home.
Closed all the idle screws and it didn't die and the vacum appears to be right around that 6 mark so I need to eliminate one more thing.
Need a thread/bolt size.

 

no idea they sell PV block offs but i'd imagine it's a vacuum leak somewhere if you can close the mixture screws. If not put in a 3.5 or 4.5 PV and just test it that way, they're only $8