Comp Cams does not mention anything about 4deg retard. Below is from their website for their cam 32-541-8.
Maybe the crank gear is installed on the incorrect notch? The crank keyway is straight up at 12 o'clock. I did not move the position of the crank during disassembly. I could have put the the crank pulley on the wrong notch or some one else could have done the same.
In any case I will use my degree wheel to verify correct installation.
| UPC | 036584780274 |
|---|---|
| Manufacturer | COMP Cams® |
| Emissions Code | |
| Engine Family | Ford 351C, 351M-400M 8 Cylinder (1970-1983) |
| RPM Operating Range | 2,500-6,000 |
| Cam Type | Hydraulic Roller |
| Camshaft Series | Magnum |
| Camshaft Gear Attachment | 1-Bolt |
| Usage | Street/Strip |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
| Advertised Intake Duration | 290 |
| Advertised Exhaust Duration | 290 |
| Intake Duration at .050 Inch Lift | 230 |
| Exhaust Duration at .050 Inch Lift | 230 |
| Intake Valve Lift | 0.578 |
| Exhaust Valve Lift | 0.578 |
| Lobe Lift Intake | 0.34 |
| Lobe Lift Exhaust | 0.34 |
| Lobe Separation | 110 |
| Intake Centerline | 106 |
| Valve Timing Lift | 0.006 |
| Exhaust Close ATDC | 31 |
| Intake Open BTDC | 39 |
| Exhaust Open BBDC | 79 |
| Intake Close ABDC | 71 |
| Lifter Style | Hydraulic Roller |