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With .200” lift @ TDC I am thinking you may have had valve to piston interference. I’d check for bent valves and pushrods. A bent valve not seating correctly could be your loss of compression issue.Looking at your figures you need to do some more juggling IMO so you have .010-.015” more on the inlet vs the exhaust.If you have to compromise, compromise the exhaust, the inlet figure is more critical than exhaust, at least that’s what I was always told.If the head is off I’d be pulling the barrels to check things, in particular the condition of the cam and followers, if they’re worn, you’ll never get the figures right.
With .200” lift @ TDC I am thinking you may have had valve to piston interference. I’d check for bent valves and pushrods. A bent valve not seating correctly could be your loss of compression issue.
Looking at your figures you need to do some more juggling IMO so you have .010-.015” more on the inlet vs the exhaust.
If you have to compromise, compromise the exhaust, the inlet figure is more critical than exhaust, at least that’s what I was always told.
If the head is off I’d be pulling the barrels to check things, in particular the condition of the cam and followers, if they’re worn, you’ll never get the figures right.
