Need some help I currently have a only hp 950 and I need to change out the power valve to a 4.5. My question is does the hp series carbs use a different power valve then the standard carbs cause if they don't pepboys Napa or even oriley  carries them for about 10$$ but neither of them can tell me if it will work on a hp carb. Thanks in advance 


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So I talked to Holly Tec support about my carb issues they said to put in a 4.5 power valve and to NOT adjust the idle at the base plate but to do it pull the air cleaner stud out and you adjust it there on the hp serious carbs I don't see no adjustment screw there.  tho  is he wrong 


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You might need to grind a  screwdriver small enough to fit inside the .257 inch minor diameter of the 5/16-18 thread for the air filter stud. 

What are you, a machinist?! Who talks like that?   

I'm trying to be more social.  This is my first attempt at social media.  How am I doing so far?

Cheers,

Joe

I'm trying to be more social.  This is my first attempt at social media.  How am I doing so far?

Cheers,

Joe

Doing fantastic! :thumb up:

Yeah, he is 👍👍👍👍


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Yeah, I saw "The Machinist" in his avatar.
Just a little sarcasm. Not too many people described a hole down to the .000ths.