[DeTomaso] Re : [De Tomaso] Summit carb

richard bosch theemonkey at yahoo.com
Wed Aug 7 20:10:18 EDT 2013


Mike,thank you for following up on the carb.I will post this to the forum as the more information the better.

Thanks,Richard


________________________________
 From: Mike Gilmore <mgilmore11 at mchsi.com>
To: richard bosch <theemonkey at yahoo.com> 
Sent: Monday, August 5, 2013 3:46 PM
Subject: Re: [DeTomaso] Re : [De Tomaso] Summit carb
 


Hi Again, Richard. I talked with one of my carburetor guru buddies today, 
he thinks Holley has revised the fuel passages, for the “Summit” named carbs. 
Probably a call to the Holley tech support line , could confirm this , and if 
so, exactly what they did to revamp the 4010/4011 series carbs. You can repost 
this the to net, if you want to. Thanks! mike gilmore, 1984, GT-5. 
From: richard bosch 
Sent: Monday, August 05, 2013 4:46 PM
To: Mike Gilmore ; detomaso mail list 
Subject: Re: [DeTomaso] Re : [De Tomaso] Summit 
carb
  Good information to know.Going lean when you really need it at the 
higher rpm's is bad!I did not have that as problem with the Summit carb i had, 
as the 302 was just a stock 5.0L HO roller motor out of a lincoln at the 
time.With the supercharger on there now,lean is where parts go Kablooey.Now i 
have a special modified(power valve referenced to the intake) Holley for use on 
roots type blowers and it is actually running on the rich side.Waiting for my 
new headers with O2 sensors to dial it in.

I 
will post this to the forum so others can see as it may prevent a lean engine 
problem from happening.

Thanks,Richard
 

________________________________
 From: Mike 
Gilmore <mgilmore11 at mchsi.com>
To: richard bosch 
<theemonkey at yahoo.com> 
Sent: Sunday, August 4, 2013 3:03 
PM
Subject: Re: [DeTomaso] Re : 
[De Tomaso] Summit carb


Hi Richard! The original Holley design of the 
4011 series carbs, was a good 
unit for everyday driving, but they were short 
on delivery on the big end, 
for all out performance. Remember reading in Hot 
Rod magazine, after they 
had been in production for several years, Holley 
annouced they were going to 
revise the fuel passages in the carbs, for 
better top end use, but, shortly 
after that, they discontinued the entire 
series, it included 600, 650, 750, 
and 800 cfm carbs. I do NOT know if 
Summit had those intended revisions 
done, orjust had  Holley start 
remaking the carburetors, with their name on 
them. If you want to repost 
this to the net, that would be fine. Best 
regards, mike gilmore, 1984 GT-5. 
-----Original Message----- 
From: richard bosch
Sent: Sunday, August 04, 
2013 10:52 AM
To: detomaso mail list
Subject: [DeTomaso] Re : [De Tomaso] 
Summit carb

Mikael,

I had the Summit carb on my mustang before i 
put the supercharger on it and 
it was as you said an excellent 
carb.

I did have a heat soak problem with it after the car had been 
parked for 30 
minutes or so after driving it.I cured it by using a phenolic 
spacer.So the 
aluminum carbs still have the same problems with heat as 
normal Holleys.At 
least for me it did.

For what its worth the Summit 
carb is actually a Holley design from the late 
1980's.I think if i recall 
correctly they were the 4010 and 4011 
series.Unfortunately they had very 
poor sales so they stopped selling them.I 
am happy that summit sells them as 
they are a good carb.Lighter than regular 
Holley's as 
well!

Richard
_______________________________________________

Detomaso 
Forum Managed by POCA

DeTomaso mailing list
DeTomaso at poca.com
http://poca.com/mailman/listinfo/detomaso


More information about the DeTomaso mailing list