HELP she buckin\', she buckin\' My 90 K5 is buckin'n! This problem seems to be occuring in the trans and when I am cruising with my foot on the gas, but only slightly on the gas. It's like speeding up to 35 then feathering the throttle to maintain speed. this is when the enging surges and bucks like a damn bull on crack. The engine seems to cut out and come back rappidly, almost like an out of time engine, yet timing is set perfectly. This problem excelerated after I eliminated the Cat, (Maybe have something to do with it?) I'm guessing a vaccuum problem due to worn cam lobes/leaky valves. The trans is electronically controled, not vaccuum, so no modulator... Any master K5 mechanics have a tip for the ol' foxman?? thanks.