right now i have come up with my combo for my street/strip 406. its going into a 68' camaro with t350 and with a 12 bolt with 3.90 gears. i don't have a lot of money(just like everyone else)so i'm using what i have laying around. my vortecs have very small intake port volume of a 170cc and still have 1.94/1.50 valves. i know that volume is too small, so i'm going to gasket match and try to open the port to 180cc and add bigger valves(2.02/1.60). i'm going to run a solid cam with 232/232 dur. .480 lift in/ex. this should give me power to 6000rpm. i do have one problem, but not serious. my 400 crank turns out to be turned down 383 stroker crank, which means it has 350 mains size (2.45) compared to a 400(2.65) so i'm thinking of using a 377 stroker main bearing spacers, but is it worth it? or should i just buy eagle 400 crank? the running 1 5/8 headers with 750cfm holley vac sec carb. the intake is a edelbrock rpm. and my cmpression is 10.25:1 which is borderline, but i think i can get way with running pump gas. if anyone has suggestions or comments, your imput would be appreciated!