Well, my friend has been wanting to race me for a while, he has a marauder wich runs about 15.3 consistently. Knowing that i have the slowest GT offered (AODE, VERT) what can I expect to run with just a catback and a cai? Im thinking im gonna run around 15.6. It kinda makes me sad, I don't even wanna race my stang until i can get more engine mods, cuz I dont wanna disgrace the Mustang name with a horrible track time like that. But he keeps begging me. Also what is the base timing set at? If I bump it what can I expect to gain? Thanks for your help