Stock heads, but I would get bigger cam, headers,1.6 or 1.7 rockers. How much hp is that good for?

 

sky is the limit. no set in stone answer, feel free to find out though!

 

My combo with stock heads would be good for 370+ rwhp with a 10 bolt. I put down 357 with a 12 bolt/ 6 speed.

See web page.

 

Depending on what cam you use 12's are a good possibilty. There are guys on the impala forum running stock heads and cam with bolt ons running high 12's. And this in a 4400 lb car.
HVY SS

 

Do you mean completely stock heads or ported stock heads?

 

Mine are untouched, never been off the car stock.

 

Javir97Z28 ran 12.0's with stock heads and a cam, and a list of other mods.

 

yep. i went 12.1 on untouched stock heads. so it is possible to go fast on them. many others on here have gone as fast and faster

 

you guys didnt touch the heads when you the valvesprings on??

 

I am talking about completely stock heads and stock cam on a 4400 lb Impala SS. No porting or valve changes. The iron impala heads flow less than the aluminum camaro heads. 210 intake to 220 intake stock.
HVY SS

 

dont be a douche

Actually the iron heads outflow the aluminum heads by a decent amount.