Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
As stated above either will work if there are no leaks AT ALL! Pushing is better, air being a smaller molecule, will always find it easier to leak in under vacuum than fuel under boost pump pressure. This is why most new vehicles have the boost pump in the tank, that and cooling of the pump motor.