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What things above the cylinders (on this model) can cause major vaccum lost? The cam timing is correct, the compression and leakdown numbers are good. Sync gages read nearly nothing (for all cylinders)when hooked up to ports. The idle sticks high before returning to normal just as if the sync is off. The engine starts ok and revs ok above 2000 rpm. Any suggestions/comments/questions??
Thank you for all input!
What things above the cylinders (on this model) can cause major vaccum lost? The cam timing is correct, the compression and leakdown numbers are good. Sync gages read nearly nothing (for all cylinders)when hooked up to ports. The idle sticks high before returning to normal just as if the sync is off. The engine starts ok and revs ok above 2000 rpm. Any suggestions/comments/questions??
Thank you for all input!