I have a '79 Chevy pickup that I have had a lt1 in for about 2 1/2 years now. I just built another lt1 and put it in. I have 12:1 compression and a cusom cam that is comparrable to the gm847 or the cc306 and roller rockers. It is an auto with a 3500 stall and 4.11 posi. I plan on puting a 250-300 shot on it also. But i need a tune for no nitrous just to get it running to break it in. Can anyone help me out and send me a file for Tuner Cat for something close to this please?

 

using a MAF?

 

yes a ported maf

 

what tune are you running now?

 

I have one that is for a hot cam and 10:1 compression