I saw that chart and it confused me somewhat because once I realised I mangled my casting code (block) what I really had was 3?70010 which on every chart I look at the ? can only be a nine. For that code I get the following from this site
http://www.73-87.com/chevy_ids/blockid.htm
1968 3970010 327 - - 2 A
1969-79 3970010 350 185 370 2 or 4 car, truck, Vette
Well I pretty sure its not a 327 and because of the intake and suffix Im fairly certain its 77' ; The confusing part is the two horsepower ratings 185 for low and 370 for high both of which are higher than the suffix CUB indicates so Im like ok wtf. Also I was told the block was 4 bolt and Im seeing now that my only way to confirm this is to drop the pan ( I need to anyway since I got a leak). But what would you take from this, whats your opinion of what I have according to the numbers?