Today, dollar for dollar, is the 318 faster than the 340 ???

I will be pulling a LA 318 roller motor out of our truck here in the future. Somewhere something will be done with it...... I have a 318 mag on the stand as well.... I have a duster that I haven't started in about 9 months.... I wonder what kind of screamer I could make out of one of them.... I have 360 heads... I have magnum heads..... I have intakes, including a dual quad intake, RPM, chinese, Stealth.... Hmmmm......