stan is it 35psi with vacuum on or off? ( hose on the regulator or off?) mine probaby isn't the same since i have a d16a6 but mine is at 39psi when hose is off the regulator.... if yours is 35 when hose is on the reg. then when its off you'll be around 45psi, which is too high..you'll be loosing hp instead of gaining it. i set mine up to about 42 psi with hose off and i noticed i was running a little rich and loosing top end badly like you said..