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A Couple of Questions....

cozcozMember
Help with a few questions please.

Installed the Fluidyne radiator with sucker fans today. (Which I got from PI Motorsports) Still have to figure out the wiring to the new fans, should be no big deal. However, on the stock radiator, on the left upper corner is a 3/8” hose that goes to the back motor area somewhere that was hooked up. Haven’t chased it down yet. Slide underneath but had had enough for tonight. Seems to run inside. It had fluid in it when I removed it.
Where does it go ? What does it do ? There no connection for it on the Fluidyne.

Just rebuilt my Holly 750. Put the same jets back in. 70 primary and 80 secondary. 6.5 power valve. They seem to much. I know everything changes according to altitude and I am in Arizona. Anybody run a 750 ? How is/was yours jetted and where ? I’m running rich. What should I drop to ? I guess I should drop and read plugs.

Put new plugs in today. I went for Autolite 24’s and came back with Autolite 25. The book for the 351 says one or the other. Anyone know the difference for the two ?
How much hotter is one then the other ?

I have to set the timing yet, which I'll do tomorrow, I should say today looking at the clock.

Thanks guys for any thought’s and experience.
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rapierrapierMember
Hi Coz,
I think that pipe will go back to one of the cylindrical canisters on the right side of the engine bay - I think it is to stop air getting trapped at the top of the rad. I remember seeing it in a diagram in the factor owner's handbook. Hope that helps (sorry it's a little vague - I'm a couple of miles from my handbook and workshop manual). I'll have a look when I get home, and let you know (unless someone else has already...)
cozcozMember
Thanks Rapier.
Found out it's a useless device that is suppose to bleed off air from the system.
Pulling it off and capping it. My bottles, after market have nowhere to attach it anyway. The only attachment on my over flow bottle is to the pressure bottle for back and forth travel. Nothing on the Fluidyne for this hose. I do the bleeding from the radiator valve on the top drivers side.
Thanks for the response... :-)
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