LQ9 408 forged need Supercharger advice

[protour_chevelle]

Finally pulled the trigger but have question about compression for supercharged application.
Have new -11 cc Wiseco pistons 4.070 and 64.5 cc heads, stock stroke 3.622 and rod length 6.098, with BTR stg2 Positive displacement cam. 227/242 .614"/.592" 122+6. Im at a static compression ratio of 9.94:1 and a dynamic compression ratio of 8.54:1, is this too much compression for 8-10lbs of boost with intent for 12 lbs on E85?



I'm already to send my knock off LS3 heads(PCE), 65.5cc, to Terry over at Wilkes Perf. for full CNC porting and 5 axis valve job and he said he could easily CNC my Wiseco pistons to -15 cc no problem netting me 9.55:1 static and 8.21:1 dynamic, am I splitting hairs at this point?

Is it better to have more compression than boost to keep timing or more boost than compression and sacrifice timing? NOT an max effort build, strictly street weekend duty 300mi loops. using crappy Calif 91 octane swill and stupid hot 100 degree summer weather (will use octane booster for sure)

Scored a new Whipple 2.9 "hot rod kit" for $5100", picked up 6.0 ls2 bare block for $650 from Steve, owner at Race Engine Dev in Oceanside for full Darton dry sleeves, 4.070 bore, $1995 ttl 2655

Id stick to 9.5:1 with the crap fuel and the heat.

More boost/less timing to make the number.