Thanks for all the info so far. This is great stuff and I'm having alot of
fun with it. I ran some numbers through my software and this is what I came
up with.
I'll speak in terms of torque since that is what makes the tires spin, yes?
These figures are on our cars with a stock 351W, no mods other than the carb,
exhaust and manifold.
Also a 5000 rpm redline.
RPM 500cfm 600cfm 750cfm carburetor
2500 285 291 294
2750 293 300 304
3000 297 303 308 peak
3250 297 303 308 same
3500 289 296 302
3750 275 284 290
4000 257 267 275
4250 230 243 252
4500 203 216 225
The off the line difference I can not determine but I would bet that all
three senarios will be very close in the quarter. Question is, what is the
fuel savings between the 500 and 750 cfm?
Greg Arend
Advantage Air
Flagstaff AZ
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