ok so my compression is? l92 related

but i have a 4.030 bore 4in stroker 1.8 valve reliefs, my pistions stick out the bore .012 and i'm going to use the ls7 headgaskets since they are cheaper then cometics but they are .052 compressed from what i've been told.
so that puts me around 10.7:1 correct? now is wanting 11.4:1 at most asking too much for a street car on 94 octane?
because my tuner told me 11.4 is what the heads like and somewhere around 30* of timing will i be able to get that many * with that compression?
so if i need to mill my heads to get 68cc's even to get 11:1 i'd be happy
how much off of the stock 70cc is it to get to 68
Last edited by 89Formulaws6; Mar 24, 2008 at 08:42 PM.

