all nice looking engines,any of them over 1000 hp?

Yes they are... Lets guess... I hope MT has the answers.. My guess : 1,2 & 5 are over .. 3 is about 750 ish 4 around 800 cause of pulley size and 6 is between 8 & 900

I cannot imagine the load on the camshaft or the water pump that these pumps would have to have to supply those #'s...just a thought

Cannot see it being anywhere nearly as high as the load the lifter/pushrod/rocker/valvespring/valve puts on the cam. Those pump springs are extremely light compared to a valve spring that has 500 ft lbs over the nose.

The last one (mine)468ci made 804 at 6200 at 7psi. The blue engine 572ci, made 900ish at 5psi . Not sure on the others.

Good read.

A couple questions as I have yet to buy my pump:

Are you guys drilling and tapping the top of the pump for 1/8" pipe thread to vent it for uscg compliance?

Is the holley billet pump junk?

I'm assuming a regulator is needed for most of these mechanical pumps. Is that correct?

I was leaning toward a holley billet or a CV. The holley puts out 7.5psi so I thought that would be nice without the need for a regulator. I was going to buy the billet job and drill and tap the top.

Thanks,
Rob

Hey Rob. My pumps which are the ones discussed in this thread, were made by holley, and had the vent tubes in them already. The ones from Teague, or Baker, also have the vents installed already. However, drilling the body and installing the vent yourself, wouldnt be a big issue.

As far as the Billet pumps from Holley, and the CV products pumps, I have never used them, therefore I cannot comment on them. I do not want to comment on a product I have no knowledge of or experience with.


N/A carbureted, is about the least demanding on a fuel pump setup you can get. Blown EFI, is on the other end of that spectrum.

Plus, 2 carbs (4 float bowls and 4 needle and seats) let's a pump able to supply more over time.

Thanks guys!
The Teague looks like a quality piece. Much cheaper than the CV and billet holley.

It says 7.5-9 psi.
Regulator or not?
I have a single 4150.

Sit tight, I broke out my holley master catalog....let me look at a few things. BRB.