The V8 Owners Forum -

Actually, if you indeed are speaking of Holley 650 double pumpers (list #s 4777, 82651, 76650, 80541, and others) and Holley 750 double pumpers (list #s 4779, 8156, 82751, 80528, and others) then yes, the baseplates will interchange between them, as all of these carbs have a throttle bore diameter o...

The float bowl screw thread (and also the baseplate screw threads) are #12-24. Helicoil thread repair kits are available though McMaster-Carr, MSC, and others here in the states; I suspect you will be to find a source for them on your side of the pond as well. One quick note... The accelerator pump ...

The big problem is when you buy something new you kind of expect it to work! Derek Oh I agree completely, Derek. In fact, Holley's general "What's that? You want good odds that the part you're buying will actually function?? Well then, you'll need to select from our premium -priced line!"...

Update. Found the problem its down to the regulator. I tested the pressure from the pump and its 13psi like it should be. I then hocked up an old filter king gave out 2.5 psi steady tweeked it up to 5.5 all is well My new holley pressure reg is on its way back to real steel as we talk. Cheers Derek...

What does this do for fuel economy when used in conjunction with the dual port (Not dual plane) manifold? I'm not sure that it would work too well with a dual port manifold because the dual port is meant to keep the primary venturies separate from the secondary venturies. I believe it does this do ...

Hello. I followed a link to this forum from another one discussing specs for racing lubricants, and noticed this thread. I thought I’d post a picture or two of a product that we designed a few years ago that has proven its worth quite successfully here in the USA. Top http://img511.imageshack.us/img...