large port commando heads

BJR Racing,

i thought these heads also had the stock boltpatern on the exhaust, but maybee i where wrong :(
reason i am looking for the bigger heads are that this engine is already so week at low rpm and on the edge of what most people would call a streetengine
its a 11:1 compression engine with a solid rollercam that makes power in the 4500-7500rpm range
for now it looked real good with the smaller chambers to gain some more compresion and i thought dose big ports could help me later when i build this thing into a stroker wish i forgot to write about :( because i thought about buying a real good set of heads first and use for one (the next) summer and then take it all apart the following winter to build it into a stroker
and i dont mind spending money if the endresult will be big power ;)
just 24 years old and realy try to build this already powerfull smallblock into something that makes enoug power to push the car far into the 10second zone without nitrous and as a real streetcar without sacrificing my interior or enlarging my rear wheelwells so it has to be done on big power i gues ...
realy apreciate your help