Pulled motor today, and finds

[BSB67]

Could you elaborate?

The 1009 gasket failures on aluminum heads have been attributed to its 4.4” bore and it being exposed with the shape difference of aluminum heads, depending on head/gasket/block stack-up location. The 8519 and the 17059 gaskets with their 4.5 bore do not appear to be afflicted with the same failures.

 

[MWbirdLOVER70]

Rear carb does have fuel leakage from ProForm base plate. Hope they take this back and fix the shaft slop.

Also have oil leakage around back of valley pan.



View attachment 1773302

View attachment 1773303

View attachment 1773304

Applied gasket to the ends of the intake gasket rail?

 

[440beep]

Of course. With gasket maker in the corners.

Applied gasket to the ends of the intake gasket rail?

 

[440beep]

I’m running the MEWagner adjustable PCV, but I question if it’s breathing properly since it looks awfully close to the valve cover baffle. Though it reacts like it’s supposed to while tuning it per the instructions.

Might not want the same jets in both sides of the carbs. I’ve seen those fuel pumps put out 10 lbs. Don’t overlook crankcase ventilation,one pcv valve doesn’t fit,er,work on all.

 

[440beep]

I’m running an Innovate dual AFR gauge and I’m at 14.7ish while idling. But upon accelerating moderately she gets really fat, 11/12, but I have electronic cut outs and will open them to dial her down to 13ish. Running a 4.5 PV too. The secondary metering plates I have no idea what they are, but plan on looking at them over winter. I have the adjustable jet plates and tempted to put them in.

Here’s where I’m lacking, I thought the needle and seat controlled the fuel so if the fuel pump is pumping out 8psi, wouldn’t the needle/seat stop too much fuel from getting the motor. I’m running the hemi mechanical pump through a 3/8 line to the carbs and the fuel pressure shows 8, and based on what I’ve read here, the Six Packs prefer 6. So I need a pressure regulator.

My fuel pressure didn't seem that high, 7.5. Lowered it to 5, had to raise the bowl levels back up to the bottom of the hole. Removed the Promax jet plates on the end carbs and put the metering plates back in for the time being, 4.5 power valve. Most of my issues have gone away. It will be next year before I can get back to playing with it. It's a little lean where it's at now. 418 small block, at least it's responding now. I'll get it.

 

[Bird 426]

I too have AFR's. Sometimes I just think that they are lying. I tried all of the 'How to tune a Sixpack'. My carbs have all new needles and seats, filters at the inlets, new Carter fuel pump, Promax base plates, and metering plates,blah, blah, blah. Something was always causing my plugs to look like that. All over the place with power valves and jetting. I knew that the fuel pressure was a little high at 7.5, but, Holley 's I thought should handle that. Well, I guess not in my case, fuel pressure regulator was my jump shot. I sort of hid it, certainly didn't want to look at it, it's down by the fuel pump against the frame rail. You can use all of the tuning info out there for a Sixpack, but it's a base or starting line for me. Some people are lucky and it all just works for them, some not.
Hope that you find your oil leak, I certainly have had a few myself! Sometimes have to get creative in finding and stopping them.

 

[440beep]

That’s a neat place to put the regulator, will remember that.