[BarryGMC]

Over the years I have had many discussions about sizing carbs and exhaust for the application the engine is being built for. Not just for the v6 but for all engines. I routinely pop out 550 hp 454s that run Holley 650 carbs and single 3 inch exhaust. These motors will burn the tires off a one ton dually all day long. Now I have concluded through trial and error that the 305 is best set up with a stormberg or Rochester carb and a single 2-1/2 exhaust. Even with a milled head and an 8.5 compression ratio. Volumetric efficiency is good and peak torque is achieved down low in the rpm's. Now it gets fun. It's really easy to get the 305 to put out 250-270 hp and 400 lbs of torque. Here is the heart of it. Let's see if some one knows what it is.and what it came from. Later we will discuss more of the details. Barry