| Step by step porting guide and pics 429/460 Same port start to finish Each step flow tested |
| pg 3 |
| Step 8: Streamline valve guide boss. Don't raise left side at this point. Raise right side .080". Use barrel tipped burr to trough around guide |
| Flow figures at 28" water corrected .1" .2" .3" .4" .5" .6" 52 97 127 148 161 167 |
| Begine to raise right side roof / longside at this point. Room permitting. Finish from exit later This is called digging out the trenches on either side of the guide |
| Step 9: Lay back exhaust bolt hole bump to existing right side wall |
| Flow figures at 28" water corrected .1" .2" .3" .4" .5" .6" .7" 54 98 129 150 162 169 171 |
| Step 10: Remove hook upper right corner Make right exit wall vertical and square corner |
| Flow figures at 28" water corrected .1" .2" .3" .4" .5" .6" .7" 52 97 129 151 165 171 174 |
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