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Sounds like the same thing has happened to the big blocks. Jim Weise addressed this in his oil mods thread, https://v8buick.com/index.php?threads/400-430-455-block-id-prep-and-oiling-mods.214613/ "One note: While I show the block on an engine stand in the pictures, it is much easier to drill...

https://www.teambuick.com/reference/library/59_chassis/5.php

The engine needs spark, fuel, and air to run. You need to find out what you are losing to make it stall. In general, a loss of fuel pressure will result in rough running then stalling. Loss of spark will cause an instantaneous stall. Is the CEL on?

Right, but he also says that he is getting full vacuum advance at idle. That means a manifold source as it should be in 1963. Concern: vacuum advance begins to pull(doesn't leak) at 10 in. and max pull at 18 in ,this is normal. Now, the problem is at idle my vacuum advance is applying max...

I'm pretty sure in 1963, vacuum advance used manifold vacuum for advance at idle. That is normal. Ported vacuum advance was used in later engines for emissions reasons. Manifold vacuum advance results in a cooler running engine.

When measuring primary resistance, the points must be CLOSED. If not, the reading will be 12 volts. The reason is there MUST be current flow to measure resistance. https://www.v8buick.com/index.php?threads/installing-points-conversion-and-hei-system-function-tests-and-modification.248990/

Sounds like what you are hearing is detonation. You can do damage to the engine like that. Your method of setting timing is very risky and inexact for a number of reasons. First, you should set initial timing with the vacuum advance disconnected and plugged. Second, the stock timing specs...

https://www.thepartsplaceinc.com/product/1972/1972-buick-skylark-gs-regal-gn-new-skylark-hood-emblem-trishield-gm-1239810-1239945/66609

In my 1970 Chassis Manual, it is on page 64-8, in the Fuel System General section.

Another option is to use a 3.42 gear set with a taller 28" rear tire, like a P275/60R-15, or a P235/70R-15. That will be like a 3.25:1 ratio.

I would contact ARP and ask them. It's just a phone call or E mail. They may be able to suggest something, or maybe, you can special order something. If you have a photo of the correct bolt, that might help as well. https://arp-bolts.com/p/contact.php

Well, you were asking if you could use any grade 8 bolt, so I thought you had found a grade 8 bolt you could use. Now you mention the shoulder on the stock bolt? I would reuse the stock bolts if I could:)

Electric fuel pumps are good at pushing fuel, not so good at drawing fuel. They work best in tank, or with a sumped tank with the pump mounted so that it can be gravity fed. Really no advantage over a good mechanical pump in a mostly street driven car. I use a CV products mechanical pump in...

If it was me, I would see what the thread size and under head length was, and then look in an ARP catalog and match something up.

Time for a rebuild,

Might help if we knew what year and model the car is. If it has an original switch pitch, then it is a 65-67. Might be a 2.93. If you don't want to ASS-U-ME:), you could jack the car up and mark the tire and driveshaft, then rotate the tire one revolution while counting the driveshaft...

Thanks Bob. I see a lot of cooling problems over at V8buick, mostly due to owners insisting on using old worn out, clogged radiators because they are original. Ignition timing also plays a big role in coolant temperatures, and 70's engines used relatively retarded timing at idle with ported...

Bob, When OEM first started using aluminum heads, there were several problems with them. Yes, they could warp if overheated, and if you weren't careful, you could strip threads on them especially spark plugs. That was then. Today, the alloys used are vastly superior. I bought my...

The Edelbrock Performer works with the 70-72 GS dual Snorkel air cleaner. The intake is a little taller, but not much. It just squishes the foam seals a bit more. The 67 Star Wars air cleaner is something else. It looks cool, but for performance, it would just be a restriction anyway. It's...

Way more users, and way more traffic. It's night and day different. With regard to the questions you are asking, there is way more information.