Quote: It seems that all these are a little softer than I would expect from the parts listed. How mu ch fussing was needed to dial them all in? Which one had the best BSFC at peak tq, and what was that number? I like these tests, but sometimes you just uncover a whole bunch more questions. thanks for making us think!
You realize these are average numbers, right? (except for the ones in my most recent post) Peaks with the Six Pack, for example, were 459 lbs-ft at 4,000 and 450 hp at 5,900. I thought that was pretty good for stock heads (you wouldn't get there with stock heads on a similar 383 Chevy).
BSFC at peak torque was .41-.50. Different intakes liked different amounts of fuel. We jetted the Holley on each setup to find optimum, but could not do so on the Six Pack (which was good out of the box, perhaps a little fat) or the Edelbrock dual quads.
Sheez, I might as well just write the entire story here! But the questions help me know what you guys want to see. Thanks.
