i bought a set of 461 double hump heads i know a lot of people don't like them but i bought them for $200 ready to bolt on does any one know where i can get the flow of these heads? and could i machine them for roller valve springs i was also thinking of just getting different heads all together but your talking a grand plus for some thing nice does any one sell any heads that work better that could be under 800 i saw a set of bare heads on e bay that a machine shop cnc there aluminum and have 210 cc intake runners and have 59 cc combustion chambers and with the pistons i have i would like to keep the cc around 58 or 60 or some thing close to that with 62cc heads they run 10.6 ide like to get it up in the 11 to 1 compression but i cant seem to find any heads for a decent price with thous small of combustion chambers

 

and thous e bay heads were like 500 or 600 bucks for the set but there bare