DUST360

small block 360, stroker and bored to 410 cuinch, edddy heads mildly ported, 1.6 rollor rockers, 4 bolt main,windige tray, 13/1 compression, edel air gap intake, 750 demon carb,590 lift cam, msd all, 1 5/8 headers. How much hp should I expect? Im gonna have it dynod in a month, any reccommendation on nos. I have a big shot that im gonna put on with a jacobs master mind 200 hp shot. please answer questions below.

1. How much hp will it make?
2. Should I cange anything now?
3. fully port the heads?
4. duster weights 3200, has 4:30 rear end, turbo action built 727 with 4200rpm stall,manual valve body.26" drag slicks,roll bar with subframe connectors.. What will it run in 1/4 mile on spray? no spry?

Please help me guys

theomahamoparguy

I'd use the next size up header.
everything else looks good. Maybe 430-450 horse if you tune it good.
Not sure about the "spray" and how much it might add. You definitley have to pay attention to the exhaust side of the motor when you use nitrous. The bigger the better on all parts of the exhaust.

theomahamoparguy

And 13 to 1 comp. might be a bit much when you add the NOS.

78D200

I agree, you should be running 1 /78 primary tube headers and a full 3" all the way back.

What you run in the 1/4 mile will all be based on how well you get the car to hook up.

67 GTX

what do you have on the car to make it hook up?

DUST360

engine all apart, going 2 machine shop tomorrow. Superstock springs, frame tied, traction bars, pinion snubber, drag shocks

67 GTX

then you should hook up just fine

72RDRNR

Approx 1/4 time for a 3200# car with 450 RWHP would be around 11.2. Trap speed about 122mph.