found this video interesting.. 360 dyno testing.
If you look at Earlie A's flow chart 360 vs ed vs sm and look at stock X head 1 column below .350 and under there fairly similar to the eddies, and really not too behind above that, and it ported 360 don't seem to take much catching up on low lifts.
My guess at the lifts were dealing with the difference wasn't that huge and at the higher .400-.500 where there would be decent gain maybe velocity did play a roll.
https://www.motortrend.com/how-to/mopp-0001-360-engine-head-porting/
If you look at Earlie A's flow chart 360 vs ed vs sm and look at stock X head 1 column below .350 and under there fairly similar to the eddies, and really not too behind above that, and it ported 360 don't seem to take much catching up on low lifts.
My guess at the lifts were dealing with the difference wasn't that huge and at the higher .400-.500 where there would be decent gain maybe velocity did play a roll.
https://www.motortrend.com/how-to/mopp-0001-360-engine-head-porting/Table 1: Intake Port Modification Sequence | ||||||||||
| Col. 1* | Col. 2* | Col. 3 | Col. 4 | Col. 5 | Col. 6 | Col. 7 | Col. 8 | Col. 9 | Col. 10* | |
| 360 Head: | 360 Head: | 360 Head: | 360 Head: | 360 Head: | 360 Head: | 360 Head: | 360 Head: | |||
| Stock | Stock | 30- | Throat/ | Blend | Guide | Radius | Gasket | Short side | Fully | |
| Lift | 340 "X" | 360 | degree | Bowl | Guide | Boss Roof | Intake | Port | radius | Ported/ |
| (in. ) | Head | Head | seats | Blend | Boss Web | Blend | Valve | Match | blend | Polished |
| 0.000 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| 0.025 | 15.0 | 12.9 | 20.1 | 19.4 | 19.6 | 18.5 | 18.2 | 19.0 | 21.0 | 20.6 |
| 0.050 | 31.5 | 29.8 | 38.1 | 37.9 | 37.5 | 37.4 | 38.4 | 38.0 | 39.3 | 39.8 |
| 0. 100 | 58.3 | 50.2 | 75.8 | 74.2 | 73.4 | 70.7 | 72.6 | 73.2 | 74.4 | 77.1 |
| 0.150 | 91.6 | 79.5 | 112.3 | 106.8 | 107.9 | 105.0 | 108.0 | 108.0 | 109.4 | 111.8 |
| 0. 200 | 124.7 | 112.6 | 140.0 | 132.6 | 134.3 | 133.5 | 134.7 | 137.8 | 136.7 | 137.3 |
| 0.250 | 152.5 | 142.2 | 162.0 | 157.0 | 158.7 | 158.4 | 159.6 | 164.5 | 161.7 | 162.6 |
| 0. 300 | 172.0 | 164.8 | 179.8 | 177.4 | 180.1 | 179.2 | 180.1 | 185.3 | 184.2 | 185.5 |
| 0.350 | 193.6 | 183.5 | 193.2 | 197.8 | 200.0 | 200.1 | 201.3 | 209.5 | 207.0 | 206.6 |
| 0.400 | 208.3 | 188.2 | 194.4 | 208.7 | 215.1 | 217.6 | 216.4 | 227.6 | 225.0 | 224.8 |
| 0.450 | 215.4 | 193.8 | 190.0 | 197.9 | 210.7 | 222.8 | 214.3 | 225.2 | 236.5 | 236.4 |
| 0.500 | 221.0 | 192.6 | 190.9 | 197.0 | 205.4 | 211.0 | 208.4 | 218.9 | 227.8 | 228.0 |
| 0.550 | 220.7 | 190.3 | 191.4 | 197.0 | 204.9 | 209.0 | 209.3 | 215.9 | 224.0 | 224.0 |
| 0. 600 | 210.0 | 189.1 | 187.5 | 196.6 | 205.6 | 209.0 | 209.0 | 216.3 | 224.7 | 224.3 |
