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I have an adjustable crank position sensor that allows me to tweek the timing just like the good old pre computer days of simply giving the distributor a twist. Got to get my steak off the grill.

Is there a timing procedure to sinc the computer at all rpms that should be followed? The engine is rebuilt and back in ready to rock but i want to get it right this time. I adjusted the map sensor .52+ before. We were thinking about a cooler plug than the rc9yc4 champion recomended. Just...

Sorry about the start up snafoos. I have a 91 yj with a 4.0 i had stroked by a very good engine builder. Less than 500 miles i scored piston #6. I burn 91 octane. 24lb injectors. Ran good sounded good until the scoring happened. any thoughts?

stroker problem can i post yet or what???

testing 1234