Holley metering blocks

[BBR]

I can't see down in the holes, what does the restrictor look like? it's a cup plug, the part with the orifice is deep down inside there...you need to use numbered drills to "measure" it.

I looked at lunch. They dang near drilled all the way through the casting. haha Used parts.

[Scott Liggett]

You have no idea how tough it's been to NOT bring up your sold off EFI system every time you bring up the mechanical ignition advance and carb issues. I'm not sure it has gotten easier Just different.

Yeah. Much less work taking carbs on and off engine for everything minor tweak and fix. Besides you now have a reason to keep a can of Chemdip in your house. What an appetizing smell it has.

[BBR]

Shiny parts just arrived.

[milner351]

Nice

[BBR]

So I stripped a bowl screw putting the new blocks on.... As quick fix, I bought a 12-24 x 3" slotted machine screw and lopped 1/4" off the end. That will work until I can come up with a more permanent fix.

Flipped on the fuel pump and checked for leaks, then fired the car up. Started with the idle mixture screws 1-1/2 turns out and ended up with them at about 1-1/8th in the limited time I had to fiddle with it. Really seems to idle better now. It is supposed to rain later today so I decided against driving it back to work, but I reeeeeeally reeeeeeally wanted to.

[milner351]

Good deal.

I've never had metering blocks with adjustable bleeds, etc., what's the indicator that you need "tune" the blocks?

[BBR]

I don't know either. haha The instructions said the factory settings would be fine for "most" engines. Usually though, mine falls outside the "most" category so I will cross that bridge when I have to.

[Scott Liggett]

So I stripped a bowl screw putting the new blocks on.... As quick fix, I bought a 12-24 x 3" slotted machine screw and lopped 1/4" off the end. That will work until I can come up with a more permanent fix.

Flipped on the fuel pump and checked for leaks, then fired the car up. Started with the idle mixture screws 1-1/2 turns out and ended up with them at about 1-1/8th in the limited time I had to fiddle with it. Really seems to idle better now. It is supposed to rain later today so I decided against driving it back to work, but I reeeeeeally reeeeeeally wanted to.

Ok muscles, put away the impact before you take off a corner of the base plate too.

[BBR]

Wha? Doesn't everybody use a 1/2" drive impact to work on carbs? They work great to remove jets and air bleeds!

[Scott Liggett]

But I have personally seen someone using a 1/2 breaker bar on those little nuts holding the carb base plate and snap a corner right off.