David Vizard's PowerTec 10 EP 13 Part 2 Super Porting Vortec Exhaust and all other 23 SBC heads

PowerTec 10 EP 13 part 2 SUPER velocity porting iron Vortec exhaust. Part 1 of a 2 part investigation.

When the velocity and direction of the air is known then getting a nearer optimal power producing port is much easier. This is stuff you can do at home with some windshield washer tubing and the output (blowing end) of a vacuum cleaner.
Here DV demonstrates on one of the David Vizard Performance school flow benches and includes high tech data very rarely found in other porting schools or youtube videos.


IOP Porting software http://davidvizardperformanceseminars...
TorqueMaster software http://davidvizardperformanceseminars...

If you are savvy enough to read this description For a limited time you will receive a $25.00 refund on purchase of the full versions of above software's. To receive the refund you need to drop me an email with your invoice# after purchase @ [email protected]

If you purchase the 90 day trial versions for $10.00 The same as above applies after purchase of full versions plus the $10.00 trial purchase price for a total of $35.00 refund.

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EDELBROCK Performer RPM intermediate Porting video part 1 Video:    • Edelbrock intermediate porting Episod...