Many years ago, a local engine builder/tuner said he drove the cars down to San Diego varying the RPMS on the freeway to break-in his motors. What a job eh?
This was from LA to San Diego and back again.
~ 400 miles I think. He said the break should be around 500 - 1000 miles, with NO hard acceleration.
Have fun
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Nick Hromyak
'85 Carrera 7 & 9 Fuchs
Havin' Fun in Sacramento