My Spitfire had twin SU carbs. PITA to balance, but the fuel system wasn't the usual main culprit. It was the electrical. Points would close by themselves, the Vulcan gave his brother MY feeler gauge, and I'd have to gap the damn things with a matchbook.
Got no chance with today's engines.
One thing about the SUs, you could balance for altitude. The Chevy 283 standard carb just changed air intake plugs. Go from sea level to 7,000 feet and you could feel the difference.
The only real pain about the change is not being able to do your own troubleshooting. If you have some idea of what's wrong, you can make sure that an electronic readout or a test isn't phony.
Another case in point. I have what was a top of the line embroidery machine from a couple of years ago. I can digitize my own designs and make the machine do them. I can edit its stitches, or I can design my own stitches. Compared to the old Singers, it's a marvel. However, being electronic and depending on a board --- if the board goes, I can't sew.
I have a mechanical high speed quilter. It is totally manual, and the only thing that would be a pain is actually breaking a part. Otherwise, you can fix a lot of the problems yourself.
So there are two sides to change, and it depends on what trade-offs there are.
Got no chance with today's engines.
One thing about the SUs, you could balance for altitude. The Chevy 283 standard carb just changed air intake plugs. Go from sea level to 7,000 feet and you could feel the difference.
The only real pain about the change is not being able to do your own troubleshooting. If you have some idea of what's wrong, you can make sure that an electronic readout or a test isn't phony.
Another case in point. I have what was a top of the line embroidery machine from a couple of years ago. I can digitize my own designs and make the machine do them. I can edit its stitches, or I can design my own stitches. Compared to the old Singers, it's a marvel. However, being electronic and depending on a board --- if the board goes, I can't sew.
I have a mechanical high speed quilter. It is totally manual, and the only thing that would be a pain is actually breaking a part. Otherwise, you can fix a lot of the problems yourself.
So there are two sides to change, and it depends on what trade-offs there are.
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