I am trying to figure out how much HP/TQ my 307 is making? Unfortunately the car is not drivable, I can only fir the motot up once a week and dream.

Here is what I have...

307 ci
Holley 600 cfm carb vac. secondaries
Stock camshaft .260 intake, .273 exhast
9:1 comp ratio
Stock heads 76cc chambers I believe
1.5 rockers
Weiand 7634 Single plane manifold
Dynomax headers 1-5/8" Primaries
Stock ignition
TH350
10 Bolt 3.08 gears

Thank You

Bob

85 horsepower graemlins/hurray.gif

From the 68 Chassis Service Manual 200 HP @ 4600 RPM, 300 FT/LBS @ 2400 RPM. I believe the 307 remained unchanged in 1969.

With the addition of a single plane intake and 4 BBL carb, I would believe you might pickup 10-15 HP but would probably drop 5-10 FT/LBS TQ due to the single plane intake.

So here is my my educated guess:

215 HP @ 5000 RPM, 290 FT/LBS @ 2600 RPM.

ps. Cody, grow up.

hey eric can i get some more specs of your engine, i want a 383 too..

You just won 8 more hp from dyno200 :D
RPM HP TRQ
2000 98 257
2500 127 267
3000 162 284
3500 191 287
4000 213 280
4500 223 260
5000 217 228
5500 201 192
6000 171 149
Good luck winning the lottery.
I'm probably going to crash my computer reloading programs onto the new hd.

Thanks for the replies...I know its a smaller less desirable motor, but it runs strong and it will have to do until I can build a 350/383. I am kindof leaning towards the 383.

Thanks Again

Bob