The a/f at 15psi was 12.0 steady and Donald didn't want to go any more lean than that, so they left the boost there. At that level it made 291.8 and 289.4 at the wheels on a dynojet in Greensboro NC..

On a 75 shot, the a/f was down at a perfect 11:1 steady. The car then made 378.5 and 396.9!!!!

Donald plans to add a 1:1 regulator to add a few more lb's of fuel and crank the boost to 18psi.. Should see well over 300 on the turbo and 400 on the bottle."