A what does it make

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1973dusterkid

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Ok got the new setup and wondering what kind of number you guys think it makes.

Info

71 360
Stock stroke
Std 4in bore
340 J heads 2.02 1.6 valves (milled to 68cc)
stock 340 duel plane intake
Long tube headers 3in collector
flat top pistons 9.2 CR


Howard cam

Cam Style:Hydraulic flat tappet
Basic Operating RPM Range:1,800-5,800
Intake Duration at 050 inch Lift:220

Exhaust Duration at 050 inch Lift:220

Duration at 050 inch Lift:220 int./220 exh.

Advertised Intake Duration:267

Advertised Exhaust Duration:267

Advertised Duration:267 int./267 exh.

Intake Valve Lift with Factory Rocker Arm Ratio:0.506 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio:0.506 in.

Lobe Separation (degrees):108
 
260HP. Low expectations are easier to prove wrong. 260 duration seems short for that lift but it should break'em loose!
 
I think it might go more if the compression is right. A "9.2:1 piston" in an unmachined factory block usually is at least 1/2 point lower. But, the milled heads and gasket choice might fix that. I'd go 300-325.
 
I don't think the horsepower will be real high,
but I think it will make good torque.
 
He's already made it clear with numbers in his other thread that compression is a blueprinted 9.2. Unless he's full of something coming out of the south end of a north bound horse.
 
Tuned well ,300 325 ....should be fun with that 4 speed
 
In an A body - that's a riot. With a stick, more of a riot. Sometimes huge power isn't the "most fun".
 
Desktop Dyno is a little more optimistic. I tend to agree with it.
 

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People on this thread I think forgot it was a 360 you have. With the increase in compression the valve sizes cam and other mods, you're going to eclipse 300 HP IMO.
 
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