Tri power intake

[deathsled]

I might have a bead on an old Ford three-two barrel setup and was wondering if it would add some decent power to the car.  As everyone probably knows by now, my car is a day two car with a 302 roller rocker setup. Edelbrock midrise intake and Holley 650 double pumper currently. (Original Cobra intake in closet with engine).  I believe that the Monte Carlo bar would clear such a setup though it would be a close shave.  I'd rather keep the original bar intact than go for a curve at the center of the bar that defeats the purpose.

[SFM6S]

 The three-2 setup would look good and once properly set up will be very driveable. The Monte Carlo bar will have to be removed to clear the air cleaner.

[deathsled]

The three-2 setup would look good and once properly set up will be very driveable. The Monte Carlo bar will have to be removed to clear the air cleaner.

I really don't want to remove that bar. What about individual air cleaners being one over each carburetor?

[Bob Gaines]

I might have a bead on an old Ford three-two barrel setup and was wondering if it would add some decent power to the car.  As everyone probably knows by now, my car is a day two car with a 302 roller rocker setup. Edelbrock midrise intake and Holley 650 double pumper currently. (Original Cobra intake in closet with engine).  I believe that the Monte Carlo bar would clear such a setup though it would be a close shave.  I'd rather keep the original bar intact than go for a curve at the center of the bar that defeats the purpose.

I would go with different heads before I tried to reinvent the wheel with the tri power setup. Especially if you wanted more power and still a somewhat original look. The heads will not look so out of place like a tri power set up will . The 650 double pumper and linkage is a no brainer . The tri power not so much. Just my 2 cents you do you. 

[Fastbackfred]

That is way too much fuel for anything other than high rpm racing. I'd stick with the 650.

[shelbydoug]

Somewhere there is a picture of Jeff Burgy's '66 GT350 with the 3x2 intake and a Cobra oval air cleaner.

He has the Monte Carlo bar running through the air cleaner. It can be done.


As far as heads go, there are lots of reasonably priced aftermarket aluminum heads available that out perform anything from the '60s including the factory race heads.

If you are thinking of going that route I will point out that the 3x2 intake manifold itself is not cabable of flowing the same numbers as the current aftermarket heads.

For example, the heads that I am using are AFR 195's. Out of the box they flow 296cfm @ .550" valve lift. They come fully CNC ported with 2.02" intakes and 1.60 exhausts.

The 3x2 intake will not match up flow wise with that. At best you are looking at 225cfm ported. The restriction is in the intake manifold itself.

You need to go to the 2x4 Trans Am intake to get into the ball park and that is only good for about a 255cfm flow.


Apparently the '66 has less hood clearance for these multi carb set ups. My 68 uses the Monti Carlo bar, the Cobra air cleaner and the C60E 2x4 intake and has room to spare.

Bring the car to me, a suitcase full of cash and I'll get it all to fit and work.

[deathsled]

Thank you for all of your insights gentlemen. I have decided to leave it alone and stick to the 650 double pumper.

[trotrof1]

If you have the heads re worked to R model specs then even the 715 works as it should.

[TA Coupe]

I don't know about hood clearance for the different years but I have the same 2x4 setup that shelbydoug has and I used 1in. phenolic spacers under the carbs in order to clear the export brace and monte carlo bar. 3x2 setup should be great for a daily driver that you just jump on once in awhile and give you better gas mileage and in my opinion they look good. If performance is what you're after then stick with what you have or go with a 2x4 setup if you also want the WOW factor.

      Roy

[deathsled]

I need to really learn the ins and outs of carburetors first.  I have two Holleys sitting around and plan to deconstruct one to see what makes it tick.  I have a rudimentary comprehension of how they work but need to take the deep dive.

[FL SAAC]

I need to really learn the ins and outs of carburetors first.  I have two Holleys sitting around and plan to deconstruct one to see what makes it tick.  I have a rudimentary comprehension of how they work but need to take the deep dive.

Funny that you mention this;

6 Things That Make Living with a Carburetor Easier

https://www.saac.com/forum/index.php?topic=26779.0

[shelbydoug]

I need to really learn the ins and outs of carburetors first.  I have two Holleys sitting around and plan to deconstruct one to see what makes it tick.  I have a rudimentary comprehension of how they work but need to take the deep dive.

There should be no parts left over when you are re-assembled.

[tesgt350]

I need to really learn the ins and outs of carburetors first.  I have two Holleys sitting around and plan to deconstruct one to see what makes it tick.  I have a rudimentary comprehension of how they work but need to take the deep dive.

There should be no parts left over when you are re-assembled.

Come on now, don't lie to the man, there are ALWAYS Parts left over...........

[deathsled]

Much like an unmatched sock coming out of the dryer.

[TA Coupe]

I keep looking for those sock thieves but can never catch them.

    Roy