going to build a 2.1L, need some answers!, calling all the engine gurus ... Options

[SirAndy]

ok, here's what i have so far:

it's going to be a 2056!

i got
the case (GA)
stock crank
stock rods
stock heads

i still need
pistons
cylinders
CAM

scored 2 x 2.0L heads from EASY today for $25 each. (IMG:style_emoticons/default/smilie_pokal.gif)
they need some work, but hey, what else is new.

i know the 2.0 is weak (flow-wise) on the exhaust side,
so i'm thinking bigger exhaust vales. i saw rebuild racing heads
today that had 38mm ex-vales. seemed like as big as you can go. right?
what size header should i ran with that?
what size valve on the intake?

also, what's the highest CR i can run on premium (california) pump gas?
is 10:1 too high ???

as for the CAM, i would like one with just a moderate increase in lift,
but a much longer duration than stock. any objections?

overall, i'm more interested in lower-rpm power than a high rev(ing) engine.
oh, and yes, the engine will be used as a daily driver as well as for auto-X and time-trail.
but focus will be daily driver. so, i need some mileage before the next rebuild.

HELP! (IMG:style_emoticons/default/pray.gif)

Andy