[Jeff Lee]

That's what I did with my car. It takes more that draining because you can't get every drop out. It has to be flushed with the race gas. My pick-up would get the first batch of race gas after it was flushed through the system. My '72 F100 360with 8.0:1 compression didn't run any better with C-16 and the wallet sure didn't like it! The filters sometimes need replacing. It was a real pain in the you-know-what.