[sam_bo3]

I just installed a cam and headers and am curious as to what kinda power I am making. the factory specs are 145 bhp and 255 torque with 2 barrrel. any replys would be appreciated. The cam works great with my 2.73 rear end! I would suggest it to anyone looking for a health sounding mild cam.
My set up is stock compression 350 (8.5:1)

600 cfm edelbock carb.

performer edelbrock intake

comp xe262 cam duration 218 / 224, 462/470 lift, 109 lobe seperation

dynomax 1 5/8 in. long tube headers w/ 6 in long 3" collectors. running into true dual.

heads (not sure of casting number) early smogger heads 1973 passeneger car

[Ghetto Jet]

Sam_bo3(I hope I don't get in trouble for typing that) I'm going to guess to see how close I get to someone's desktop dyno results. HP 299 TQ 329.


Mike

[Impala5967]

Using Dyno 2000:
Assuming:
350 stock 8.5:1
Low Performance Stock ports and Valves
2.02I , 1.60E
600CFM@1.5inHg Dual Plane Intake
Large tube Headers with Mufflers
Your Cam specs
HP FTLB RPM
126 332 2000
162 341 2500
198 347 3000
238 357 3500
272 357 4000
297 346 4500
304 319 5000
294 281 5500
269 235 6000
241 195 6500

Hope this helps

[87442lover]

Now what 350 heads came stock with 2 inch and 1.6 inch valves on a low performance 350?

1.94x1.5


274HP at 4500RPM
362FTLBS at 3000RPM

assuming it's a 2bbl

266HP at 4500RPM
360FTLBS at 2500RPM

Do remember that these numbers are at the crank, not the wheels.

[machine shop tom]

Some early 400 SBC heads came with 1.94/1.60 valves and I've been told that some early 327 heads had the same (haven't been able to confirm that).


Impala, according to the D/D manual, 1-5/8" headers would be considered small-tube headers. Using seat-to-seat timing, and with 110 lobe separation (from the cam spec sheet) I get:

rpm hp torque

2000 137 360
2500 174 365
3000 210 368
3500 246 369
4000 273 358
4500 284 331
5000 274 287
5500 248 237


These figures are probably generous 'cause if you are running composition head gaskets you are prolly running closer to 8:1 comp.

tom

[sam_bo3]

Thanks alot for the quick replies. Those numbers were about what I was hoping for so I am happy with that. maybe I will be able to spin a tire : )