The year of the carb...

Asleep at the wheel again, that's me, and missed all this. First, an apology to Tim if I stated or implied that the 2V was or should be a 500cfm as I don't think that to be the case either.   

One quick note on Gary's: That engine tag says yours is a 289 built in 1968!

I'll jump back on later, not that Vondy needs any more help.

reidp wrote:     One quick note on Gary's: That engine tag says yours is a 289 built in 1968!

Yea my block was changed out at sometime with a 302,don't tell Pete it's not original

I posted these pic's Dave of my installation of a 450 cfm 4 bbl to show you what was involved with the change.If you change to a 4 bbl,you'll need the manifold,gaskets and pipe plugs (those blue plugs in the pic's) to fill holes you don't use.I bought a 4bbl wedge spacer to match the one that Holman Moody used. Some here say you don't need one,but I put one on just for the pcv hose connection.I then fabricated a bracket for the throttle,which I'm changing over to a Pleasure Craft Marine (PCM) bracket since I like the adjustment better,and I think I needed a new cable because it needed to come under the motor from the back and up to the carb. I think the original 2bbl had the cable going over the front of the motor to the carb.
Or you just pretty much bolt on the 2 bbl and maybe just change out the cable and the cable mount.

In a word, no. But I think and others will conferm that you could take that pcv hose fom the valve cover and use a hose fitting instead of one of those blue plugs in the manifold. I think you'll be happy with your choice.

Gary's carb may not have a vacuum port for the PCV, but a new Holly will.

The PVC port on the new 4160's is on the back- at least it is on my 750cfm. Alan has one on his 600cfm. I cant say where it is on the 450cfm, but Id be surprised if it didnt have one.

Wow, thats weird! I wonder if its because they sell so much fewer of the 450cfm's that they still havent been converted to the new style yet. That vacuum port sure is convenient.

Yes my carb is pretty old,I bought it used and rebuilt it. There was no way I was going to pay more for a carb than I paid for the boat That looks like the cap Dave, but that seems high,maybe the one I was looking at wasn't marine. I stopped at Summit on the way home from the river run to get one for myself around 530pm.It was Saturday and they had 2 guys working the counter,the line was so long I'd still be there. Incredible place tho,one giant candy shop.
At the time I could not find a spacer with a pcv port so I took a phenolic one drilled a hole and epoxyed in a pipe to match my pcv hose and from there Dremeled slots to the primary side of the spacer matching the ones in the original HM spacer.

Yes, I believe that flat top distributor cap will work. Theres nothing marine specific about the cap as far as I know.

Yes, you can run the PCV valve to the intake manifold. No, you do not want a breather cap instead of the PCV- you can run both, but theyre not the same.

Gary what kind of plug wires are you running? There's about a thousand of them out there. For some reason I'm having more trouble figuring out a new set of wires than a new carb... at least the carb is figured out now.

I'm running the MSD Blaster High Vibration Coil and Mallory e-spark conversion.

Dave I made those wires from bulk Accel 7mm solid core wire. I crimped and soldered the ends. I think your e spark conversion needs 8mm wires tho.If you still have the HM valvecovers with the wire guide in place you can go with the auto ones but if you don't, go with Tims idea and come up from underneath.

Those would be the exact wires I would be ordering if I were you.

Bruce, double check what type of terminals are on your dist... if its an HEI style (male pins) then you may need a different style.

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