[Bob Carriere]

.... interesting observation....... we have no way of telling what pressure it is running at but will investigate..... he is running a standard mechanical pump with a removeable outbourd fuel tank.

When we described Rob's engine as running rough it may be missleading..... our choice of words may have been misleading.....

His engine developed a vibration..... that increses with rpm..... not strong vibration but a noticeable one..... as if something was out of round. Now the new spark plugs have greatly reduced that ill shaking....almost gone but not totally. I uspect that it would not even record on a microphone... the rough running vibration his much more felt than heard.

On the other hand my engine as a small persistent not regualr popping or puffing sound from the exhaust and can be heard an felt if you hold your hand by the outlet of the exhaust pipe.... I suspect a valve adjustment is needed....... hoping against all odds that I did not burn out or wear out a cam lobe on the start up......

On separate note...... I scored a spare Carter YF 966s carburator and I am having an elusive Zenith 28 228 carb rebuilt..... originally stock on 270 GMC.... it will be nice to see which runs best on the 261...... all of them will accept the stock 216 air breather. In time, pictures will follow.

Hang in there and thanks for the intellectual/mechanical dialogue.

Bob