if your gonna keep it on gas..get rid of the surge tank and plumb it straight from the tank to the carb,regulator 1st...how much motor you got ?.....the holley blue is a good reliable pump but i would not run it on anything much over 600hp..i don't care what any advertisment says about it being rated for more hp..
if you switch to alcohol...then you need a little bigger pump from fuel cell feeding the surge tank....i do not know why the person had a holley blue feeding alcohol to a surge tank...the holley blue is not even alcohol compatible..and its not NEAR big enough to supply the surge tank with alcohol...
make sure you got a #10 line from rear cell to surge tank....place the alcohol carb on and run yourself a cooler plug with a .030 to .032 gap..
i left my timing where it was (37 degrees) and it was fine..but try it and see where your motor likes it..
tell us a little about your motor ?
Brian
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Bjuice..
"I'M YOUR HUCKLEBERRY ! "