Rich,The Weiand WPD4D has a crossover port dead center between the two carb pads. If you stick your finger into the plenum and reach toward the center of the intake you should feel the crossover port. Some of the WPD4D's had two crossover ports, one under each carb pad in the plenum.
My thought is not to remove the four hole carb pad as carb mixing is sufficiently balanced and you don't need any more plenum volume. A gain in torque/throttle response should come from a 1" four hole spacer matched to the manifold carb pad; or leave a slight step (approx. 1/64") from the four hole spacer to the carb pad. Make your own from a piece of hardwood or laminated wood quickly and inexpensively for this test.
Let me know how your Poly responds. Gary Pavlovich----- Original Message ----- From: "Rich Kinsley" <rlkinsley@xxxxxxxxx>
To: <1962to1965mopars@xxxxxxxxxx> Sent: Wednesday, January 23, 2008 9:07 PM Subject: RE: Manifold modification question
It was done on a dual-quad set-up also. I think the intent is to get both sides equal. There's only a small slot in the top of the divider right now. If I were to install an open carb riser that'd also cause the divider to be of less consequence. I think it's generally considered though that the individual venturi with longer runners produce more torque, esp for the low end. That was my thinking to keep the longer runners but open up the divider for more balance. Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies ==================================================================== Dodger7998@xxxxxxx wrote:Rich,,,,,,,,,,I have not read Don's book lately,,,,,,,,,so going off of memory,,,,,,,wasn't that being done so as for better flow,,,,,,,,,,,,and mixing of primary and secondary incoming fuel,,,,,,,,,,,,,,,,,not sure this would apply to your multi. carb. set up,,,,,,,,,,,,,,,they should already be flowing all that you need, and with proper jetting, should be supplying plenty to all intake runners **************Start the year off right. Easy ways to stay in shape. http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489 [Non-text portions of this message have been removed]Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies ----Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks!'62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.
---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines:http://www.1962to1965mopar.ornocar.org/mletiq.html.
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