Don
I totally agree with Dick as to the potential for
ignition problems causing the miss. Wiring and
plugs would be my primary candidate there. There
is one other area that I have seen cause a miss as
you describe. ...and you don't want to hear it...
But - I have seen a low speed miss under load
caused by a 'weak' valve. That being one that is
burned "just a little". In your case, it may be a
valve that is set to tight and not seating
properly. Try checking the valve clearance and/or
compression and if one is a little low check the
valve clearance on that one.
HTH
Bill '70 6 32 years under one roof
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