Can a 400BBM w/cheap aluminum heads compete/dominate against the street LS?

greymouser7 said

Yeah E-85 with maybe some AVgas would be great, and affordable, but like you said inconsistent (we found it to be very dirty (perhaps less refined or filtered) in South East Georgia.
But 108 octane would cushion against detonation on a high end build.
I wonder if it would separate if mixed with AVgas while sitting-needing a binding agent?

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Ya I don't know. I just use 110 out of the can. The way I figure it's good insurance and if I do have to put some pump gas in it I don't have to worry. It's just not that big a deal for the amount of street miles driven. Pump premium is like $3.20 a gal. and 110 is about 65 - $70 for 5 so if you run it 50/50 it comes out to approx. $8.50 a gal. Not to bad for a tank of race fuel. The first tank full is the killer after that it's not to bad.