I tried to us a electric vacuum pump to eliminate the condensation in my engine due to short intensive bursts on the street, getting ready for the drags, but encounted the problem pointed out previouly, that under full load and high RPM I had a positve crank case pressure and blew out the rocker cover gasket and the sump gasket is now leaking with standard breathers, I now have a oil patch on my drive way and had a second degree burn to my arm from accededently touching the pump to remind me of the electric vacuum pump.
Now I am saving for a mechanical vacuum pump, I should have done in the first place IMO.