I DETAILED WHAT WE DID WITH OUR FACTORY 5 ENGINES IN COMPETITION WHICH CALLS FOR STOCK ENGINES AND THAT IS WHAT I DID REMOVING SOME THINGS... LOL
THESE CAN BE DONE ON THE STREETS AND WILL GAIN YOU POWER FOR ALMOST ZERO DOLLARS. AFTER DOING THESE THINGS YOU CAN BOLT ON PORTED HEADS OR AFTERMARKET CYLINDER HEADS FOR ADDITIONAL POWER!
Obtw, I get numerous requests for technical advice and if interested, tex me @ 626 203 2712. Half hour to 1 hour+ rates are available. Most calls go over as posted and it is ok. US Pacific time zone.