HMM so an aftermarket cam is going to get along fine with the ultimate? I dont want to be tuning this stupid truck for the rest of my life. I can get a stock regring for $100 locally or get an aftermarket cam for between $430-$450. I just want this dumb truck to run good. Thats all i ask : )
You are asking a lot. You are going to be running heads that aren't stock Syty, a cam that isn't stock Syty, a turbo that isn't stock Syty.. then larger injectors...
Tuning will be necessary, but going off a proven recipe will make things easier.
John has run the Vortecs & the 9-412-8 combo, with a larger turbo and 50s. I can't say that it ran perfect, or that you'll pass emissions, but it seemed to run ok.
John can give you more data on that.
I have some calibrations that will work on that buildup.. but keep in mind the more radical you go, the more difficult tuning will be. These are speed density computers, they are not as flexible with modifications as MAF systems are. On most vehicles, a good camshaft is almost always a performance upgrade, with Syty's, it can cause more problems than it is worth and will slow you down unless you have the combination & calibration that it needs.
