Throwing this out there but has anyone looking into the fuel system for the Cobalt? I know alot of guys that have run 30psi over the stock system so my logic is leading me to believe that the direct injection system from a cobalt should flow enough for a LLT.
I know Cobalt's fuel pump is in tank and the rails can run up to 2800psi. So if it can push 4 cylinders to 30psi then it should be able to push 6 at 5-10psi.
Hopefully this can help solve the puzzle
2008 SS/TC Black w/ Black Int. - LNF FTW
Bad-Mab Downpipe | K&N SRI | Trifecta Tune @23psi | Treadstone TR-8 Intercooler | TTR Engine Mount | Shorty Antenna | Debadged Rear and Dash w/ Tinted Tails / Plasti Dip Rims
Pioneer 6 3/4 - 6x9 components - Pioneer Center Channel Speaker - Polyfilled Stock Sub Box