Pre-workout Acetyl L Carnitine and Powerlifting?

So ive got a bag of acetyl l carnitine for free and was thinking if it would work as a pre workout since caffeine pills taken pre-wo upset my stomach post-wo. Im trying to gain some good weight (mostly muscle mass) so i want to be sure it doesnt interfere with my training and bulk since its used mostly for cutting weight.

you can use carnitine it won’t interfere anything.