guys

im about to start on my 408 ls twin turbo build. i need to know what to buy...

I had a FAST b2b system on my BBC, and liked those VE and spark tables. easy to use.

So for this twin turbo build (2 bar to start), do i just modify the tune on my ecm (03 Sierra lq4 ecm going into a 67 Camaro) or do i need one of these custom OS's? how much do those cost?

will i use the MAF on the turbo setup? or straight speed density? id like to get nice mpgs when off boost. its a 5 speed car.

I need to buy from someone who can help with the tuning..especially turbos. ill have a lot of questions at first. im in the LA area, so it would be nice to buy from/know someone here that can help if needed.

its just the one car. so i dont need to tune anything else. what do i buy and do i have the capability to log data and then make changes?

thanks guys
jeff