Quote:
Originally posted by mkcobra
We did change the metering rods to one step up per the book but not really changing the airfuel reading, i do have one more larger rod. on the secondary you are saying to cut weight off of the butter fly it looks like one solid part with the weights on the ends, i will watch the carb running this weekend to see if they open and how much. thanks
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Another non carb suggestion or question. Tell us about the MSD distributor please. Is it a mechanical or vacuum advance? If it is mechanical what set of springs are in the advance mechanism. My MSD distributor came with three spring sets for different timing curves. I know the distributor has nothing to do with the low fuel air ratio but you are looking for HP right? and HP in all the right places, ignition timing can really screw things up.
I am using the 6025 heads, 1407 carb on a 302. I haven't had it on the Dyno yet and I have been running with shop wheels and tires but I know one thing it kicks some serious butt. I also know without a air fuel analyzer that at idle it runs rich and doesn't lean out much through the rpms range. I am running a Ford Racing M-6250-B303 roller tappet cam.
Cobra Chuck