i have a bbc runs on gas and alcohol only a 6-al box ( true pro-street car)...i run the gaps anywhere from .028 to .032 and have no problems with cutting out or flame blowing out...thats the reason for shortining up the gap...so the flame doesn;t have to travel so far..
when i ran my 383 Alcohol injected motor..i ran 0.16 never any more than .020..this was with a 7-al....
also ran a pro-mag 12 on a another bbc alochol injected motor with the same gap as my small block.
shorten her up i think you will be surprised...
i will bet its the answer to your breaking up in early rounds.... :P
Brian
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Bjuice..
"I'M YOUR HUCKLEBERRY ! "