Can someone help here? Re: Alfa Help

[Mastro Subaru Alfa Romeo Of Tampa <mastro@domain.elided>]

Please help this fellow out, if you know the answer....

TMurray845@domain.elided wrote:

> Bill,
>
> Thought you might help me without having to post on the digest.
>
> Just rebuilt my spider 77.  Have been running webers from IAP for 6 years.
> Just had Sperry do the head to stock, and put stock everything back.  Got rid
> of the smoke. I have the crane kit on the distributor.  New wires, rotor and
> cap. Lodge spark plugs.
> The motor has always had a spitting back through carbs, misfire especially
> when cold. I add a little choke when cold and it stops. when it warms up and
> choke is full open (off) , it continues to spit occasionally when completely
> warm.  Just a slight pop, not a loud backfire. Sounds like a spit.  During the
> rebuild I made absolutely sure of all timing marks. Just pulled the valve
> cover again today to double check, and they are perfect.  I have adjusted
> distributor timing over and over. I can make it increase and decrease, but it
> won't stop completely.  I have adjusted mixture and checked the carbs for even
> opening and closing, they look good.  When I had the intake off I looked
> through with a light with carbs still attached.  They look very even. Both
> open and close together perfectly.  When I got the car the Spica system was
> absolutely gone, so I put the webers on.
> The motor has plenty of pep, and doesn't pop during hard acceleration when
> warmed up, and it winds up to 5500 rpm just fine, but pops or spits during
> very very slight acceleration, and steady 60 to 70 mph running and higher.
> Actually any speed when I'm doing steady running I get this spit.
> Can you suggest anything the I could try?  It sure does sound like timing, but
> could it be some fine adjustment to the carbs that I don't know about?  I've
> read all that I can find to read about webers, and can't figure this one out.
> I've static timed, and strobe timed and check the high rpm strobe test, and it
> lines up pretty close to book specs.
> No Alfa people around this area.  Atlanta is 100 miles away.
> If you can give me some Ideas to try, it would be greatly appreciated.
>
> Thanks!
> Stan
> Columbus, Ga.



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