[Ron H]

I have full exhaust that I uncap the cut outs at the track. Pypes full 3" with race pro mufflers on a 68 firebird.
I would say the amount is very little getting into my exhaust pipes but it is enough to cause smoke. I drive on highway. Stop at a store. Restart car and a huge bellow of blue comes out the exhaust pipes. But rev it and put it in drive and it's gone.
I am sure this will be eliminated when i put the sheet metal valve covers I ordered with the evac holes coming out the front.