blowers

i know a fair amount about blowers but i'd like to get some details, like minimum cylinder wall thickness, compression ratios? (i know they have to be low), any thing else would help.
can anyone suggest anything for me to read about blowers on small block chevy's, mostly 305's, 327's, and 350's?
or if you care to tell me something, thanks for ur help

there is a thread called need some blower help on the front page there are some books recommended on it hope this help's