DeTomaso Mailing List: February 98, Message #44
     



From: 	MikeLDrew@aol.com

Subject: Re:  Intake manifold/carburettor

Date: 	Sun, 1 Feb 1998 22:24:36 +0000



Cristiano wrote:



- Do I need this spacer?

- How much extra power will it give me?



>>>I don't know.  Since the spacer will cause you to no longer run an air

filter, or alternatively not run the engine cover, neither which you want to

give up, then it seems like this is a non-question for you.  When Larry Stock

was running a Holley on his stock engine, he had the factory manifold

machined out to match up to the ports on the carb.  



>- Since my car is a GTS, I have always thought that the Holley carb. was

standard-  mounted from the factory. Is it probable that the factory has

mounted the carb. in the         described way? 



>>>Yes, and yes.  Nobody ever accused DeTomaso of being too concerned with

details such as this. :>)



>Were the carb's on american

cars (Mustangs etc.) also mounted this     way?



>>>Remember, U.S. cars had an Autolite carburetor whose contours matched the

intake manifold exactly.



>- Would it be an advantage - instead of installing the spacer - to install

another carb.     with 2" secondaries, which the manifold was obviously

intended fore?



>>>If you're going to do anything at all, you'd be MUCH better off installing

a new MANIFOLD, an aluminum one will not only shed unwanted weight, but also

give better performance.  If you want to keep your stock screen, the

Edelbrock Performer is the way to go; if power is what you're after, then the

FPP 4145B seems to be the winner.



Brand new, the Performer only costs about $160 (much less than a new carb)

and plenty of people have them available used, because as owners go to bigger

and more powerful motors, the Performer is the first thing that is put aside.

 A few phone calls to USA vendors might net you something; I know Larry Stock

has several of them (one of them used to be mine) and I assume the others

would too.



As a guess, I'd say that between 2/3 and 3/4 of the Panteras on the road here

have a Performer.  Is that a pretty fair statement, guys, or do I overstate

the case?



Mike