440 Source Head Opinions?

Oldiron440 said
E85 was the fuel with a 950 Holley that had a clean idle around 900 rpm and 1 7/8” step headers but it doesn’t matter the heads still made the power, you don’t get that for $850 with a pair of china’s **** heads….

With, what...13:1 squeeze? Maybe more?

And, of course...all else being equal, alky makes more power than gas.