Thread: Need to lower compression on 454

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new pistons or e85 if you have alot of work in the heads you may want to go with pistons.is this a close chamber head now? if so you could put open chamber heads on it if the cam set up for hi cr then it not going to work good if you drop it to far down . i would be looking at e 85 if you have it around were you are .i have not see it here i have had 13to1 454 that i could run prem pump in it just to bang around town i had a big cam i allways used ave gas i think 101 LL ? thats been some time but i go to the air port with a can and i did mix it as well i do not know were the price is on this stuff but race was i think $5.50 at the pump here