Im at 12 lbs. Only 1 map. This car rapes. Proper install and re-check and then good tune is all u need. Im at 12 lbs considered to be the max we should run since I put down 534/500.
I'm maxxed out on the fuel system. With upgraded fuel system this motor might be able to hold more.
Good luck cosmo, at least know u can go for some big power with a built block!
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