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Yes - what I got was they put a 750cfm body on a 850-950 baseplate with their 1-3/4" throttle bores and they flowed ~830cfm... that's what I found on the net (for what its worth) So 1.42" venturi sounds about in line with that i measured. These apparently were on a blown big block Ford in a...

Well It is difficult to measure the venturi size accurately with the calipers i have but I am coming up around ~1.41"... so not too sure if that puts it closer to 1-3/8 or 1-7/16 but definitely under 1-1/2" so with a 1-3/4" throttle bores I would imagine that would definitely put it down on...

Anyone on here know much about Demon carbs? (Prior to them being bought out by Holley) I came upon a matched pair of Demons I will be running and am attempting to determine what I can as the owner didn't know too much. I have determined they are Mighty Demon cars of either 850 or 950cfm. The...

Yea... what's up with them? They are moving to another state to avoid massive CA corporate tax increases. Same reason Toyota, Raytheon, etc have moved.

The factory 4bbl iron intakes yes... Same for the 2x4 factory set up --- the Weiand 7503 4bbl would accept a standard 4150 flange

Ok... I am in the market for a pair of carbs for an engine build... When the hell did carbs get so expensive???? All I need is a basic 750cfm mechanical secondary carb... ideally boost referenced. Summit has the 750cfm 4150 series carbs for ~$600 each - not even accounting for...

NOOOOOO! You gotta decide to run a Megasquirt (unassembled kit) so you can pull your hair out and build it, make a wiring harness from scratch, get it all wired in, tune it... just get an off the shelf intake and spend sleepless nights researching what works.... then go buy a TIG welder...

I am going to be running the TF240s on my 440 - sent them to my machinist and he was really impressed with them thus far

I am running some rather low compression forged pistons - ended up with ~9.2 compression with the 78cc heads. With a supercharger you don't need huge cams to make power - the overlap of a tight LSA would actually bleed off the pressure a bit - so a wider LSA would be better with the highest lift...

Working on putting my build together currently - 440 with an 8-71 on it for my 64 Polara Short block is done, heads getting gone through, and deciding on cam currently. What questions do you have?

sounds like the above poster's opinion - Do you get black smoke or rough running on initial startup ? If there are signs of a very rich condition you problem have a stuck needle/seat, float level adjustment issue, etc as listed above.

Probably not great as the issue seems to be fuel distribution and turbulance though the intake itself. So even thought the throttle bodies mix the air/fuel better it doesnt overcome the root cause of lack of performance (IMO)

hmmmm good points. I always thought it would be nice to have a cross ram set up - this could be run on an RB block with spacers from what I remember -

So... went digging through my shed yesterday and realized I have some random parts I forgot I had in there. Anyway - I have an Edelbrock STR-15 intake (with the cross ram lid) By all accounts this intake was not a great performer but at least it looks cool... does anyone have any...

Agreed - use the top model. YY1 - I would disassemble and clean it and install new gaskets. A basic bench rebuild. There is plenty of diagrams and info on the Tquad out there online if you get lost.