Super porting factory castings for aftermarket power.
31:14
Power producing hi-tech spring selection
1:01:11
David Vizard's PowerTec 10 EP 28 The ultimate youtube head porting video
33:07
Cam timing for REAL power and the automatic cam degree wheel
43:45
% Golden porting rules - part 4 of rule #1
26:52
High lift rockers - desirable but incorrectly tested.
41:03
Building a 427ci Pump Gas Small Block for Ultimate Street Domination - Engine Power S11, E15/16
2:03:11
David Vizard - tuning the A-Series engine
32:40