I have a modified LS1 with GM hot cam, 243 heads, FAST intake, headers and 90MM drive by wire throttle body.

Where should I start looking for these issues?

1. The RPMs are high on hot starts,...

I have a LS swap in a 68 Camaro and have a couple issues that would like to fix in my current tune.



The RPMs are high on hot starts, but after a few seconds the RPMs come down to 900...

I have a LS swap in a 68 Camaro and have a couple issues that would like to fix in my current tune.

I need to know what equipment and software should I use, i.e. laptop, cable and software...