hi i just needed some help with choosing parts for my stroker build this is my first big block build i need help finding out my compression ratio and if i should use a different set of heads so here are the parts so far 4.250 stroke crank with 6.385 length rods with flat top pistons +3cc 4.31 in bore the head i was looking at are the brodix bb2 heads they have 119cc combustion chamber with a intake runner volume of 340 havent decided on the cam yet was thinking bout either the comp cam 11-213-3 which has an advertised duration of 292/292 and lift of .550 or the comp cam 11-214-4 which is 305/305 with.575in lift i will also be using comp 1.72 ratio rockers this engine is for a street car with some strip so i need it to stay on pump gas plan on later maybe adding the bottle to it also what size/type carb do yall think i should use thank you