If my car sits for a min or so it makes a puddle of gas under the engine. It only has less than 1000 miles on it, just got it back Anyone know what it could be?

 

Leaking fuel, just a guess.

 

Check your FPD, the fuel rails, and all lines going to and from the engine bay. And do not drive the car until you find the problem. If necessairy, have the car towed back to the shop that worked on it.

 

Holy **** no joke get a fire extinguisher handy and do not drive it at all is correct

I'd check the drivers side firewall where the return and feed lines are
who the hell installed the engine

 

Holy crap! It just started leaking now? I wouldn't be staring it/driving it until you get that fixed. Check the common leaking FPD... wait well what kind injectors/rail do you have to support your mods; I sure hope not stock still.

 

Follow the lines until you find the leak.

 

BTW, do not start the car. If you need to get the fuel moving just turn the key to the on position without starting. This will give you pressure in the lines.

 

gotham racing did my install, i've got a fuelpump and 850cc primaries and secondaries.