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Glad you’re getting something out of it. Frankly, you done some fairly elaborate testing yourself…….that I’ve gotten some nice info from. Like mapping the flow around the perimeter of the valve on the chamber side.

Ah true, but not all metals. Nor does it clean everything. That’s why it’s use has to be so specific.

Good observation. All of my steep top angle testing is with the valves sunk in the head. So that means both the 50 and the 45 were sunk. The additional shrouding of the steep top cut hurts low lift flow but helps on the top end (I think).

There's Waldo

O were on Gallup NM

Pointed rearward behind the 1/2 shift lever . You may need a '65 switch instead of a 69. Not sure what year they changed.

I 40 to Gallup NM first night. Here now. I40 to Oklahoma city. Second night. Will Roger's turnpike up to st Louis 3 night. Then a short drive to near Chris

The TSM provides instruction There is a detent button on top of the light switch mechanism to release the shaft There is a special tool to remove the locking nut, but you can manage with a couple of small screwdrivers or long needle nose plier Use an Allen wrench to remove the wiper know and...

Thanks for taking so much time to answer questions. You and PBR are both a blessing to a lot of people. Interaction and information like this is hard to come by.

Is that with the seat at the “std” height, or after you’ve lowered the valve in the chamber .090”?

Hey all just out of curiosity I've got a 1974 dart sport that has been big block swapped to do so I used the shumacker swap mounts. When using said mounts you have to cut the riverside of the k member to level the engine. I would like to swap back to a small block so what I'm curios of is. Can I...

2% is kinda lite, but I’m looking forward to seeing the results you get. 2% for 10 minutes, or 10% for 2 min. :D

The one data point that I have that I have confirmed several times is this. On the SM head with 50 degree seats, changing the top angle from 39 degrees to 45 degrees ON THE SHORT SIDE ONLY is worth 5-7 cfm because of the anti-reversion. I have only done this test with clay in the chamber due...

I use muriatic acid on some things here and there. It wont damage plastic or most rubber when diluted, and it kicks *** for cleaning rust and corrosion. But as you have noticed by now, it is something you have to be very careful with. I sometimes use it for carbs, but diluted and only leave it...

In my limited testing of changing only the valve job from a 45 to a 50, the results were less lower/mid-lift flow, and no gains, or even a slight loss at the higher lifts. Keep in mind these were tests done at the customers request, on a head that had to be usable after the testing was done...

Well looks like I gotta make a wrench to get these things off

For sale is the like new Aeromotive 100 micron filter. I had it connected for a day and had fuel run through it for only a few minutes. I realized later that I needed a 10 micron filter AFTER the fuel pump. The 100 micron filter is a prefilter, before the fuel pump. I had purchased this before I...

Is that not one of the advantages of 50 deg seats? Less low lift flow but more high lift flow. Maybe the intake duration can be increased a little due to the this? That's not the real reason I started playing with it though. I saw the 50 degree seat as 5 degrees less of a turn on the short...

One of the terminals on your starter relay needs to be grounded for the relay to activate. The switch you show (ouch) is just a ground switch. It makes a ground for the solenoid to activate when the trans is in park or neutral. One wire from the switch terminal to the starter relay does it...

Sale pending for all three, but I'll put you next in line.

Here’s another using a solid roller.

:usflag:

A smaller cam then 340 in a bigblock Head tilt

For some builds, you have to ask yourself……..do you really want more flow in the areas of the flow curve where the piston is going the wrong way? As a general rule, I’d agree with that.

Just picked up a 318 poly motor and single 318 LA head. I'll try to do a 318A vs 318LA flow test soon. Should be fun.

Voltage drop when cold between starter+ and battery+ while cranking was 0.94 and between battery- and starter case was 0.36. I didn't even bother warming it up. Would this be bad connections or wires?

Here is an example that was just posted a week ago. In a 440 with a solid roller.

Yes sir and yes sir they do ..I appreciate it either way thank you for replying back, Will

bump