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can anybody explain how you can take a 650 holley, buy an 850 proform body, and it becomes an 850???????????

these kits dont come with bigger butterflies....(or do they)???

as far as i can see------bigger venturies, same throttle plate?????? = bigger carb?????

please help???

trying to make up my mind on what and which carb to buy, or upgrade mine??
thanx for any and all help!
 

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can anybody explain how you can take a 650 holley, buy an 850 proform body, and it becomes an 850???????????

these kits dont come with bigger butterflies....(or do they)???

as far as i can see------bigger venturies, same throttle plate?????? = bigger carb?????

please help???

trying to make up my mind on what and which carb to buy, or upgrade mine??
thanx for any and all help!
i dont know the answer to ur ???, but, i do know that people have taken the 660's & put the 850 base plate on them & made them work fine...depending on ur application (motor, usage, etc), i would either upgrade the 650, especially if its a DP mech sec or shop for a 700DP or 750DP mech sec...both work fine on stock to mild motors...i have a 650DP mech sec modified by myself on a Edel air gap manif on a mild BBC 427 that works pretty damn good for my purpose...just my .02 cents

FastRat
 

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as far as i know , they wont ,, you can go from a 650 to a 750 with just the bodie change,, the way it works is the baseplates are the same on both, if you look at the top of a 650 bore compaired to the bottom , you can see the it is different, the bore it tappered,, on the 750 it is the same all the way through ,, i just put 750 hp bodies on my old 650s
 

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can anybody explain how you can take a 650 holley, buy an 850 proform body, and it becomes an 850???????????

these kits dont come with bigger butterflies....(or do they)???

as far as i can see------bigger venturies, same throttle plate?????? = bigger carb?????

please help???

trying to make up my mind on what and which carb to buy, or upgrade mine??
thanx for any and all help!
I know it is cheaper to change bodys out but IMO you should look for a new 750 Holley stright out of the box! Problem solved! WT:)devil
 
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