Do you think these things here will produce 12's out of a stock bottom end and a decent cam?

SB-Chevy Cast Iron Vortec Cylinder Head
206cc Intake Ports
65cc Combustion Chambers
2.000'' Int/1.550'' Exh Valves
.530'' Max Lift
Assembled Sold Individually




Blaster 2 Coil
Coil Bracket
MSD 6 AL Ignition Box
Superconductor 8.5 Universal Spark Plug Wires
Universal 18'' Superconductor Coil Wire

XHD 10'' Street/Strip Torque Converter
29-3200 Stall Speed


Pro Magnum Roller Rocker Arms
For Chevy 265-400
3/8'' rocker stud
1.6 ratio
16 per package

TPI Nitrous System
Camaro/Firebird and Corvette
100-150 horsepower
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Yeah, those heads should easily flow enough to give to give you a 12 second pass. But it depends on your combo. Is this thing going to be a TPI setup? Because if so you have to be careful with your cam choice, youll need to upgrade your base and pleneum etc. to get the most out of those heads. You will also need to have a chip tuned for it.

 

without the nitrous--no to maybe-- with the nitrous yes

Talk to Larry Dunlap he has run 12.78 stock bottom end--I have run 13.20's stock bottom!

 

Sound possible to me, enough nitrous (as the ricers callit Nawzz) you can prolly go 11s im sure.

 

Really think so?

 

At the risk of a stock lower end that is, i sprayed a 200hp hit on a stcok TBI 305 for 1 year before the fuel pump crapped out and detonated a cylender.

 

Now with these heads should i get the shorter runners or should the stock ones work fine?

 

That sounds like something zane would do. How did it run on 200?

 

Well, it ran like a scalded ape, it surprised allot of LS1s and olmost got into a couple of fights because people did not wanna believe it was a 5 litre, but anyone that recently met me know my size may have been a deterrant Never got it to the track, i was too poor to have slicks back then.

 

that just goes to prove that gas jetted and tuned correctly will run for a long time

 

Nitrous with cast pistons .................. yikes!

I've seen some catastrophic failures and some that last awhile. It's a crap shoot.

 

You ever see the super chevy(i think it was) or CHP mag that they went for bust on a 90% stock 76 350, only had a n20 cam, and intake n carb, safely went 325 shot, i think they went 425 shot or somthing like that when it popped a piston finally, it was so much that there was a dense fog of fuel and nitrous above the horn of the carb on the dyno, chevy power!!! Like a rock...a cast iron piece of rock.