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Old 09-20-2009, 12:00 PM
Excaliber Excaliber is offline
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First thing, gotta go with Barry on the carb selection, "flame throwers", that about sums it up.

Now, another BIG item to look for with bogging is base timing. Almost always it "aint enough". I can't recall exactly but I'm pretty sure my cam is also a 282S, solid flat tappet, lumpy idle, dual fours, idle speed below 1000 rpm is not the best, maybe 900 the least.

I've run THREE different versions of carbs on it and EVERYONE gave me a bog UNLESS, I set the base timing around 20 degrees! At that timing my starter is right on the edge of having hard time cranking the motor over when it's hot, so I back down the timing "just enough" to get the starter to work OK. That results in just a "slight bog", which WILL go away with just a bit more advance, but then starter issue...

SO, I bought a high dollar mini starter and the dang non-replacable strarter drive went out a year later. Couple hundred bucks down the drain. Went back to stock Ford starter ($50) and backed off the base timing "just enough".

Still here? It gets better. So then I bought a "Ready to Run" MSD distributor with vacuum advance, which for awhile I never hooked up. Base timing at 20, mech advance limited to 18, 38 total. More than I like, but it runs good and has about 7000 miles on it now. Some time back I started using the vacuum advance. WOW, really woke up the LOW RPM end of things! Without it I CANNOT drop below 2000-2100 rpm without the motor complaining. WITH IT, I can go down to around 1600 rpm and get smooth power flow.

I'm dialed in, and it wasn't the carbs. All though, in your case, it might well be that AND a timing issue.

At cruise rpm, around 3000-3200, with the vacuum advance I figure my total advance is 48. Base+mech+vacuum. I'm getting 11-12 mpg. 8.5 power valves.

EDIT: Just checked, I'm running the 292S, no doubt a little more aggessive than the 282? Could be why I need more timing than most?

Last edited by Excaliber; 09-20-2009 at 12:15 PM..
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