[Dark_5.0]

Here is your problem.

Your car is speed density so it does not correct for fuel like mass air does.

You "need" an adjustable regulator to add fuel to the mixture cause speed density will not add fuel to compensate for more air flow.

Lucky for you this is a simple fix. Increase the fuel pressure and you are good to go.

Wesleys article is specific to mass air cars.

I ran speed density for a few years with way more mods than you with geat results.

I was running 44 psi of fuel pressure with a good H/C/I package.