Ok so ive looked into the porting and I think im going to send out the jug in the near future to be done. What is it called when you have the head way more bowl shaped? Also after having these things done what about a +3 crank? Does it make a dif? Do u have to majorly tweaj your timing? Can u do all this put it back together kick it and itll run? I know timing generaly is very tricky (for me at least) and I dont want this to not run. Any help would be greatly appreciated im very new at the mods and all that.