Re: 64 FI Vacuum Measurement
A couple of things.
1 Gary Bramlett says 11-12 inches with a good guage. Mine is Sears from the 1980s....just a simple dial about 3 inches diameter. But it is consistent from one day to the next. Absolute values may not be right. Of course I don't meet a number of his other criteria.
2. I believe for many reasons my car is 38000 original miles but have not owned it since new so I will never be sure and, even if so, the owner may have had a failure and some work done. Just after I bought this car in about 2000 we discussed on this forum the metallic brakes. I'm still running the original pads and drums (X stamped in the web). The original Michelin X 6.70X15 radials look about half worn out. But in removing the FI unit I can see that the intake manifold/plenum mounting plate gaskets are not original. They don't match what John DeGregory and others are selling. Between the front and rear plenum leg mountings on both sides they run parallel to the valve cover/head edge and do not follow the outline of the intake such that there is significant gasket exposed/not covered by the intake. I was disappointed to see this but John was sure they had been changed so the engine has been opened up for something at some time.
3. I'll certainly follow your advice on the cam measurement but, can I use your procedure for the 30-30 cam which states that the intake and exhaust will both be on the base circle....or do I need to do it differently....even if it is not a 30-30. Remember, I'm not a gear head but I am trainable.
A couple of things.
1 Gary Bramlett says 11-12 inches with a good guage. Mine is Sears from the 1980s....just a simple dial about 3 inches diameter. But it is consistent from one day to the next. Absolute values may not be right. Of course I don't meet a number of his other criteria.
2. I believe for many reasons my car is 38000 original miles but have not owned it since new so I will never be sure and, even if so, the owner may have had a failure and some work done. Just after I bought this car in about 2000 we discussed on this forum the metallic brakes. I'm still running the original pads and drums (X stamped in the web). The original Michelin X 6.70X15 radials look about half worn out. But in removing the FI unit I can see that the intake manifold/plenum mounting plate gaskets are not original. They don't match what John DeGregory and others are selling. Between the front and rear plenum leg mountings on both sides they run parallel to the valve cover/head edge and do not follow the outline of the intake such that there is significant gasket exposed/not covered by the intake. I was disappointed to see this but John was sure they had been changed so the engine has been opened up for something at some time.
3. I'll certainly follow your advice on the cam measurement but, can I use your procedure for the 30-30 cam which states that the intake and exhaust will both be on the base circle....or do I need to do it differently....even if it is not a 30-30. Remember, I'm not a gear head but I am trainable.
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