base starting tune help...

[gmtech13]

Let me start off I've searched, I've read and am just a lil confused. so I'm asking for help.

Ok i'll admit i'm a little green on this, i have efi live V1 and will be using the 0411 pcm (02 2500 6.0 express van)

I'm building a lq9 block (yes flat tops i wish they were dished) throwing a M1 procharger on it and have the LSr comp 293LCB HR16 ( http://www.compcams.com/Cam_Specs/Ca...csid=1421&sb=0 ) 243/259 .624/.624 on 116lsa straight up with 317's and flat tops (what i had laying around) and 43/lb injectors

backed by a t56, but my harness is for an auto that i will modify when it gets installed.

I need help on base tune for this, something i can start the car on and break the motor in on the street, i am not planning on feeding the motor with the blower to break the engine in.

should i start with a 6.0 tune and modify it for a m6 or start with a 5.7 m6 tune and modify it for a 6.0???

I've heard of problems from guys swapping auto to m6's with the plugs running way hot (from timing) cause the car always thinks it's in neutral.

any advice will be appreciated.

[Frost]

what the heck is an M1 procharger?

[gmtech13]

the M1 is from a big block boat

similar to a P600B for cars, I've been told that it has an upgraded impeller and better guts though??

they are designed to push 5lbs on a 502 efi boat motor