So for the past couple months ive been getting some engine work done to my 02 GT ( i know it’s taken forever, the shops been on some bull**** lol) I bored the engine out .20, stroked it out to a 301, had forged internals installed and stage 3 cams. I was suppose to get it back in time to get it tuned but I won’t be able to since I get it back today and it goes to the body shop tomorrow morning. So my question is. How long am I able to drive with those mods and no tune before I **** something up?? Once I grab it I’ll obviously be driving it like a grandma to and from my place and the body shop.