got the brewer heads flowed, they flowed 426 on a local bench. as far as rockers, I got the t&d 1.7 rockers with the heads. but still called t&d and they still sell the rocker set up for a hair over $1600. still wondering about the block, was considering going indy max low deck block, so I could use my existing tti step headers, and help on hood clearance. but they are expensive!! a new set of headers with this block would be cheaper, but still wonder about the strength of this block?