Building up my 68 340

crackedback said

Don't believe everything you read about HP... Without porting the stock heads will get you in the 340-350 range.

Click to expand...

Pretty spot on cracked back
Here is something I found.

Duration @ 0.050": 224° / 230°
Max Lift w/ 1.5RR: .477" / .480"
Lobe Separation: 110°
Intake Centerline: 106°
Engine Type: Small Block
Compression: 9.25:1
Heads: Performer RPM
Intake: Edelbrock Performer RPM Air Gap
Carburetor: Holley #3310 Vac. Sec.
Exhaust: 1 5/8" Headers

Max Torque: 413 ft*lbs @ 3800 RPM Max Power: 342 HP @ 5000 RPM