thank you all for your responses.
steve: would the same hold true on Chaosmosis' and my 350sl? both have the 4.5 motors mine is a 72 and Chaosmosis' is a 73.
once the engine warms up a mite or is thrown into gear the up down cycle is over. runs just fine.
thanks to all for any help.
1972 350sl Red/Blk 117k
1988 420sel charcoal/Blk 140k
1987 420sel gold/tan 128k
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