So, it's looking like i am finally going to get to build my 360 in the near future. I would appreciate some help on carb choice. I have looked at several articles, but am still undecided.

The engine is an LA 360 (74 model) that will be in front of an a-500 trans. it'll be .030 over with KB107 pistons. comp XE262 cam, rebuilt EOM heads with 3 angle valve job, and for now, stock iron 4 bbl intake. From what I have read, I am leaning towards something along the lines of a holley 750 with vacuum secondaries, but want to ask you guys... looking for good performance and torque with good drivability and some symblance of economy. is there such a creature in existance? LOL... what do you guys suggest for my application?

Holley 4175... or a Q jet..

the 750 is a tad to big IMO and you will need an adapter if your intake is a spreadbore.

I'll have to look again to verify... I'm sad to say it's been years since i looked at my parts. (it became discouraging, LOL) I think the intake that I have is a square bore. (IE two large oval inlets vs 4 smaller barrel sized inlets

what Shorty said, a properly setup Q jet or thermoquad. A 750 Holley is too big for your app/no economy. the iron spreadbore 360 OE intake is an excellent piece (tho heavy)

spread-bore: Thermoquad
square-bore: Holley 670 Avenger series.

625 Street Demon. Calibration is nearly perfect out of the box for that engine, which is not the case with a 3310 750 .

Keith

The Street Demon is a very good choice. Go with the plastic center.

OP, listen to Dunnuck. He has had the carbs on a dyno with A/F measuring, so I'd say his is the only opinion not based on guesswork.

R.

6 Pack is the only way to go!

ok, so, this post is going to make me sound like a complete rookie here, but i've never dealt with an OEM iron 4 bbl from this era. the intake (i'm going to guess is a spread bore) it has 2 inlets, but they're not open ovals like you see on a modern square bore. they're figure 8 shaped. making me think it's a spread bore intended for a TQ... am i right?

i may be looking at a different 4 bbl intake, may even go Ederbrock or something...still gathering you guys' information.

arent the TQs 800 CFM?

i'm gladly taking all of you guys' information to construct the big picture adn make my decision

ok, so, definitely dont need thatmuch carb is the general concensus is that i need les than 750. a couppl of the articles i have read show on similar builds, improvements in stats up through 750CFM dropping off at 800 and up. so, maybe i'll start searching in the direction of an eddy intake and sompatible square bore carb.

is that Demon a square bore? how pricey?
keep the info and suggestions coming guys.

any market for this TQ intake?

Just got done ordering a new street demon #1901 625cfm. Amazon had it for $349. + tax, so I called around and found someone to match price with no tax or shipping. Going on my 360 in a van so I got the poly model which is little more $$ than the all alum model #1900 but will work better in the heat I think.

so...dont look at me sideways when I ask this, lol. I have avoided aluminum imtales because my only experience with them is that they heat soak and cause vapor lock when hot.

is there
A. an iron square bore intake with performance akin to the edelbrock?

B. an aluminum intake that wont have issues or a way to avoid the heat issues?