Have you played around with different nozzle locations? There should be some power gain from evaporation but I don't know where the nozzle should be to optimize that.

Is that after having the manifold machined for them?

I drilled and tapped them. As far as nozzle placement I have asked experts about it, as I recall no advantage to moving them. But, a call to Kinsler tomorrow since you mentioned it for another opinion.

I've seen, years ago, roundy round dirt sprint cars with the Kinsler F.I. using them with the methanol injector nozzles mounted halfway up the tubes, not anywhere near the flanges.

Definitely looks great. I don't know anything. So, itis good to hear experience fron testing.

Looks good to me too but, like everyone else has said, the proof is in the pudding! I'm eager to see this run.

So what was the cost?

This was a quote for my 440-2 before we started to make an entirely new intake based on that casting:


"Our Competition Porting Service is $1675 and an EFI Conversion (install bungs, billet -8 or -10 fuel rails and stanchions) is $800. "

I will most likely send it out eventually as my low deck engine collection grows.

OK,
I think Indy is selling the 3X intake for $700 now. Plus $1700 ... $2,400 cast intake manifold.
I did look at Wilson's web site and some of their sheet metal intakes are around $4,500

I guess the days of $150 used intakes from the swap meet are over...

I'll sell you a used intake for $150. It won't make as much power as a $1500 intake, but your engine will run.

After reading this I chose to leave the nozzles where they were. Puppy agreed.
Reading further about down nozzles in the heads that spray directly on the intake valve is interesting.

That’s on stack injection and I’m not sure I even believe that. I ran two flying toilets on a tunnel ram and every time I moved the nozzles up I made more power everywhere. Maybe, maybe because stack injection limits airflow moving the nozzles up may be a power loss. Maybe. But on a manifold like yours moving the nozzles up to the base of the plenum will make more power. If you lose some idle quality, increase the idle check pressure. I ended up at 12 or 14 PSI on the idle check with the nozzles up high and it idled as good as it did with the lower nozzle position.

Mad, I will investigate further. Thanks all for input. The last piece of the puzzle showed up today, a Jesel belt drive. Now if I have the right length pushrods,,,,,, 🤔

Greg,
Are the port exit openings (to the heads) this size? or closer to 1.375 x 2.65


From the Indy web site for intake gaskets:

My ports match the 572 gaskets perfectly. They were done by Radar(nickname?) In Iowa in 2002.

Roger Lechtenberg. Same guy that did my MW Victors and Indy intake.

Then your $$$$ intake will be perfect if you decide to change to 572-13 heads.

I talked to Ken Lazzeri of INDY at PRI, on Thursday, and we discussed the 440-3X intake. They are redesigning it to look more like this. Said it will take a while before it's ready, but is in the works. He wasn't shy about telling me what needed to be done to mine.

Ken has consistently been very sharing with information every time I engaged him. Which is one reason I do business with Indy regardless of the previous owners.