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I think you have made the right call to replace the crankshaft IMO. If Mallory had been added to the counterweights parallel to the crank axis it would have resolved that problem and added the weight back safely. I saw an engine that had been balanced the way yours had been done - it was at a...

I am no fan of weights welded in like that. The centrifugal force throws them out and the do around the same damage to the engine as an artillery round. Those cracks will often occur when welding dissimilar metals and cooling to quickly and not keeping the inert gas after flow going. You would...

I hate it if I have to do things more than once - but I have quite a few times over the years. The engine sounds really good so once you sort the balance factor out it will be fine. Good luck.

Take a look at Progression they appear to be doing good stuff. Looks easy to change the timing curve and that is what really counts. A digital curve distributor makes tweaks so easy, especially with the fuel available today.

That cam is fairly aggressive for sure and would be happier with a manual transmission. I have noticed Howards Cams give you the specs at 0.020" with a solid grind because of valve lash. With the intake valve closing 83 ABDC it is pretty wild. I don't think it will have much vacuum for power...

Above post is quite right. If the pistons stick out of the block or are zero deck you will have a major collision with a 27 thou head gasket. You need a safe minimum of 40 thou between the cylinder head and the piston top.

If the engine runs good why bother. A reduction from a 40 thousands gasket to a 27 is only going to raise the compression from say 10 to 10.2 Not really a noticeable change IMO

I can understand why there are rules. The reality is most people will bend the rules if they are smart enough - but some folks break them to win disadvantaging the guys who do not cheat. I am not directing this comment at John it is just my opinion on what goes on at race tracks. Racers by...

Wow even more impressive - it has got even more power! You are doing something right for sure. Wish I knew your secret sauce combination.

Your car is pretty fast for a 318. You have got that engine humming.

The new TKX is probably a better choice - more features.

It still sounds to me like your problem is in the booster assist area.

A larger diameter or double diagram booster will give more "assist" and that is definitely true. So this means the selection of the correct booster type for a 4 wheel disc car becomes critical due to the requirement for far more line pressure. But it does have factors like pedal ratio, size of...

The check valves are generally built in to the plastic inlet fitting of the booster or vacuum tank. You only need one at the booster, but for checking purposes they can be bypassed to ensure the vacuum is getting to the booster. With full vacuum on the booster if it still will not operate it...

Sounds like the booster is not right - if your description of a really hard pedal is on the money. Connect the pump straight to the booster with none of the check valves and see what happens. Make sure the booster is seeing the full vacuum. You only need one check valve in the whole system.

I am not sure on your main bearing/timing chain issue. Probably worth investigating but you should be OK the bearing manufacturers are very good. A lot of earlier engines used the link type (Morse Silent chain) and these did need a lot of oil. The roller chain does not need as much oil. Early...

Do you mean billet aluminium?

Manton mostly.

I read about grooving the journals for continuous oiling in a book by Larry Shepard. The guy seems to know his stuff. I put far less of a groove in mine than he suggests you can in the book and have no excess oil problems. The groove I put in is 20 thousands wide and 10 thousands deep. The...

Just machine a shallow groove in the cam journal that aligns with the hole in the cam bearing. I made one easily with the lathe. Don't make it to wide or deep. While it is apart thread the head for a restrictor - you may not need it.