Another "whats my HP/Torque"

[Blew86442]

Here are the specs and build of my motor. It has about 10:1 compression. I'm thinking 325HP/350Tq???? Thanks!

Engine chevy 350 .060 over
eagle crank, rods, speed pro pistons, sealed power rings
clevite 77 bearings
comp cams cam 270h, 270 duration, 470 lift
comp cams lifters, hardened one piece push rods
pete jackson noisey gear drive
melling oil pump, oil drive
arp main studs, head bolts, rod bolts
Chevy double hump heads casting 3890462 dates D207 (April 20, 1967) and D217 (April 21, 1967), ported, polished, 2.02I, 1.60E, hardened seats, screw in studs, guide plates
harland sharp roller rockers 1.5
summit stage 3 intake (edelbrock rpm air gap)
barry grant speed demon 650 electric choke, vacuum secondaries

 

[DRIVEN]

I think your guess is pretty close.

 

[othtim]

Only 325 out of a 270H cam and an RPM Air Gap? with ported double humps??? What are you revving to??

Here's another opinion from CHP: (look at formula 77)

http://www.ryanscarpage.50megs.com/combos11.html

 

[DRIVEN]

That's a pretty similar package. Some differences though; rocker ratio, CR, intake design. I also am assuming that the OP is probably running full accessories, smaller headers and mufflers. I'd guess he's closer to 340hp and 370tq. Likely has a broader torque range than the dyno engine. Looks like a nice street package. If anything, the heads might be too big...or the cam, intake and carb are all too small :lol: .

 

[Blew86442]

Here is some more info on my build....and thx for the info so far!

heddman long tube headers ceramic coated
2.5" pipe, h-pipe
flowmaster 40 delta flows

aluminum radiator
2 electric fans

hei dist, vacuum advance
aluminum high volume water pump, high volume t-stat
holley mechanical fuel pump