Head porting - One of the most valuable things that can be done to your VW (especially if you're going larger and adding mods)....and for FREE!! Today we attempt to port as best we can with knowledge from Bill Fishers book "How to Hot Rod Volkswagen Engines". While not following to the tee (i.e. not unshrouding valves in the chamber), we tackle and improve some of the problem areas associated with the 50+ year old design. Hopefully it should make a big improvement in how our 90.5 / 1904 build flows and performs!