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Just ran a best of all time 11.96 @112.9. With the air gap. I've always ran the m1 single plane. I just renctly got a handle on the tune ,so I've been tempted to put the m1 back and see if it would run the same 360. Kb I think the 191s. Around 10.5 340x heads port work. I think I...

Petty blue would u happen to have the part # on your throttle bracket ,the summit website only list ford,chevy or universal. Thanks i know this is a old post

I fixed the fuel boil problem a while back with a spacer ,but my next step was a return line if the spacer didn't work

It really seams that the rear float level was just to high. I'm messing getting cracking the secondary blades a little at a time getting real close to perfect now. I have the base timing set at 25 degrees and total at 34. I pulled the distributor out and limited the mechanical...

I lowered the float level in the rear and it seams to have helped. Yeah I know there is no magic screw driver that will fix it I was just kinda thinking out loud with the post trying to get the old rag to run as well as possible like setting the timing like crackedback has...

The power valve is new.

I have a 3310 holly on my 440 and I'm having a hard start after warmed up I can look into the carb and after about 20 minutes the throttle blades will be soaking wet , I have all the basics covered , float level ,squiters are not leaking Etc. It really looks like it's coming from the...

Try to close the secondary blades a little more and see if that helps. Don't forget to reset your idle mixture after the adjustment

Leaned out the idle with a couple pieces of wire in the metering blocks Man what a difference it smells so much cleaner also will start and idle much sooner than before I don't have a air fuel meter so not real sure where it is but I sure like the way it idles now just thought I would shave

ok that makes sense

looking for some insight on adjusting air fuel mixture engine is a smog 440 in a 78 D300 carb is a 750 vacum 750 engine seams to run best when the mixture scews are adjusted all the way in does that mean i need to jet the carb down thanks for any help