I've later realized that the begining of my reply above may have been 'dickish', and was not intended to be
while I do have alot of experience with engines, etc and custom work I have never nor will I ever claim to know everything. I'm on this site because I've had little to no experience with the 60deg v6
kinda trying to pick some of my parts in the thinking of switching to the 3.4 later... and/or addition of turbo (I may do initial testing etc of turbo on the 2.8, ya know... grenade the 2.8 not the 3.4 LOL )
In that regards ... I'm guessing a 260 grind would be better to focus on? it wouldn't give full gains in the initial (although still a drastic improvement over stock cam ) .. but should be better suited for a turbo later
looking at doing the 454 TBI too (with 4.3 injectors.. tweak with fuel pressure) .. again it wouldn't show any real gains on the N/A 2.8 .. maybe some throttle response .. bit of a headache to tweak in for the n/a .. but would definately help for a turbo later. (basically like down jetting a carb that's too big for an engine )
is there any decent threads or sites...etc for opening up/porting the tbi intake manifold and heads? I haven't touched a set of heads in years .. and even then the last set was just a clean up they barely even needed a port match ..
ofcourse my next journey will be into the Eprom tuning and that I have no idea how to make a run at