[DeTomaso] Pantera Problems for new Long Island ownwer

[asajay at asajay.com]

Spark plugs:
NGK or Autolite ONLY.  My personal favorite are NGK.

NO PLATINUMS.  NONE, NADDA.  DO NOT INSTALL.  You most likely will be sorry.


650 for a street engine is more than adequate.  A 750 is overkill, way  
overkill.  If the engine has been built for high horsepower and  
torque, then a 750 should work fine, but the 650 is a much better  
choice for most folks. I run a 635 Carter on my Mach I with a 351C,  
mild street/strip build and so far it's all the carb I need.

When it chugs, is there any backfiring through the carb or exhaust?   
Does the engine turn over very easily or odes it catch, turn, catch,  
turn?

Asa Jay

Quoting boyd casey <boyd411 at gmail.com>:

> I have been thinking about your problem and I think before you spend
> $1000.00 ( and that's what it will cost you if you goo to a high end shop to
> diagnose your problem this is what I would do if I were you and I will help
> you do  it if you want. You can get a remanufactured carb right from holley
> starting around $250.00. You can also consider a used one for allot less or
> a brand new one for more. I also think (as I told you a 750 CFM is more then
> you need ,. A 650 cfm is good for a 351 cleveland of up to 500hp. I
> personally like a manual choke. One less thing to go wrong , very simple to
> operate and in warm weather you don't even need a choke.  I would buy a 650
> CFM carb, and new wires, and check that you have the correct spark plugs. I
> would install the new carb and double check the base line settings for the
> timing and check the shear pin on your distributor gear.  Once you get it
> running I have a spare MSD 6AL Hi energy ignition set up and two extra coils
> so you can see if these things make enough of an improvement in performance
> to make the investment. NO ONE will lend you any ignition parts to "try out"
>  ( besides me) bbecause it is to easy to Totally F**K them up . Once we get
> your car running then we can work on "tweaking it" to get the maximum
> performance. If you want an electric choke or vacuum distributor
> or vacuum secondaries on your carb that is up to you. I think you should
> start with the simplest setup possible. This helps to eliminate other
> possible problem areas.  Let me know what you want to do. If you want to
> take a crack at my idea I will be able to help you.over the next few days
> and definitely over the weekend. His car has old wires. He changed the plugs
> to autolites, but kept the old wires. I have already told him that was a big
> NO NO.
>  Anyone who feels like  chiming in please do so. I am slightly above a
> novice and know next to nothing about carbs. Please voice opinion on 650  vs
> 750 for what is probably a stock engine and Holley vs Edelbrock or any other
> brand or model #. Also I Iknow there are lots of opinions on spark plugs.
> What is the consensus or the official position about the correct plugs to
> use ?
> Boyd
> So to put it in a concise list
>
>
> 1. Carbb Edelbrock or Holley ?
> 2. 650 or 750 ?
> 3. Choke electric or manual?
> 4. Plugs brand, and temp?
> 5. Wires Brand?
> 6. Vacuum distributor ?  ( opinion)
> 7. Vacuum secondaries? ( opinion)
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