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i have a gen 7 dfi setup in my 67 camaro, its a 383 motor. the problem i am having is after the motor is warmed up the a/f ratio meter jumps from being normal to real lean and back again and so on.the correction starts at 5% and jumps to the max of 25%..it does this at idle and sometimes while...

here is a little backgroung on my car first...i have a 383 in my 67 camaro with a gen7 setup with an lm1 wideband hooked through the dfi..the intake is a holley stealtram....now for the problem...i really haven't driven the car much latley(for about a month)...anyway today i took it for a ride...

i have a gen7(still tuning) on a small block chevy(NA)...i get a pop out of my exhaust when i romp on it....i thought that a pop out the exhaust meant that its lean but my lm1 is reading 12.8:1 afr....anyone have any thoughts???any help would be appreciated.... mike

i know this isn't a buick question but i figured maybe someone can help...i have a gen7 steup(calmap v4) and i am trying to tune the ve table...motor is a chevy 383..my question is when i run a datalog and i go back to review it,there are some points on the log i can't seem to tune..for example...