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I went earlier this year to test with a friend of mine that had purchased 1 of our cars. He started having the same problem as you have. After the 2nd time out I pulled off the filter and found all the foam in it. We had to take off the line from the tank up to the filter and run a coat hanger thru it. It was packed so tight with foam you literally couldn't use an air blower to clean it out. Needless to say, practice was over for that day. He did get all of it out of his fuel system finally. But he did have to take off the line all the way to the pump because the foam was so fine it still passed thru the filter. He also changed the filter after the 1st 2 nights he raced just to make sure he didn't miss any. $20 bucks for a few filters is lots cheaper than burning up your powerplant.
I went earlier this year to test with a friend of mine that had purchased 1 of our cars. He started having the same problem as you have. After the 2nd time out I pulled off the filter and found all the foam in it. We had to take off the line from the tank up to the filter and run a coat hanger thru it. It was packed so tight with foam you literally couldn't use an air blower to clean it out. Needless to say, practice was over for that day. He did get all of it out of his fuel system finally. But he did have to take off the line all the way to the pump because the foam was so fine it still passed thru the filter. He also changed the filter after the 1st 2 nights he raced just to make sure he didn't miss any. $20 bucks for a few filters is lots cheaper than burning up your powerplant.
Been thru the same deal, the sheeit was in the fuel bowls of the carb!
I run foam too and I have heard horror stories about this happening. The foam I bought said it will not deteriorate even with the ethanol in pump gas. I still keep an eye out for it though. So far so good.
Crew Chief "Tip of the day":
Most handling problems can be solved by adjusting the screw-ball. It can be difficult to fine tune at times. Explaining yourself loudly and striking it on top of the helmet with a dead blow hammer usually works well.
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