What power number should I expect?
 

I would love to hit 420whp

My plan is
Streetsweeper HT cam
http://www.flowtechinduction.com/fti...r-ht-camshaft/

Ls6 or fast 78 intake ( i have the ability to get either one for 350.00)
BTR Valvetrain

stock or handed ported 243/799 heads. milled .010. (could I mill with that cam?)

Texas speed longtubes, no cats, xpipe, stock mufflers for now.

CAI

Tune.

What would you guys say I should expect from those mods?

I had a 228R in a previous car and loved it for my DD. I never take my car to the track so driveability is huge for me. but I always felt like I could have been ok with a lil bigger than my 228 but not much

maybe 400rw

What would be my choke point?

I made 380 on a 228 with stock ls1 intake, stock 853 heads and a rich tune..

Seems like 400whp would be low for that setup

We hand ported a set of 243s, milled them I think .025, stock gasket, and made 450 420 thru a 9 inch and a steal driveshaft with a stock ls6 intake.

Same cam made 415 400 in my old Z06 cam only.

It may not be a dyno queen cam, but it will hurt some feelings on the track and street.

Aim low so if its not what you wanted, the disappoint isnt so bad

My setup will be very similar to this


with different heads and no cats. should I be running bigger than a 78mm intake with this setup though?