Quote:
Originally Posted by northern
I built a 2 bolt main 421ci sbc, It has a 13.2:1 compression ratio. It has been running very nice for three years now. I built it just to run on the street and to run on pump fuel. It is has rubber fuel lines and a fuel cell from Summit. Can you guess what pump fuel I am using?
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Yes...E85.. ,(oh.. unless you have aluminum heads and a cam around 270 duration @ .050 ).