I put that carb on my 67 289 and am very happy with it.
It did not clear the air cleaner. I had to make a spacer to lift the air cleaner about 3/16". Basically a very thick gasket on top of the carb.
I cannot speak to the other 2 questions. (my coil is on the front of the engine and I don't have AC)

 

Check this thread out..... unfortunately on another forum. It details the effort a guy with a '69 351 Mustang went through to make it happen. The stock air cleaner
he has is ram air, not the generic Mustang piece. I doubt an intake mounted coil would fly.

1969 Mustang Summit M2008 Series Carburetor Install ...

I had started a thread asking about repro O.E. ford 4BBL Throttle Cable Brackets, which started to morph into a thread about modding one to mount on one of these Summit carbs. Instead of continuing with that thread, I figured it would be best to start clean with a NEW thread on all that needs to ...

1969stang.com

 

Summit sells a 1/2" spacer that will lift the stock air cleaner. The air cleaner hits the carb not the manifold so the manifold mounted coil is unaffected.

Lifting the air cleaner 1/2" leaves a small gap between the snorkel and the hot air tube, I could have made it work but it's never really winter here so I removed the tube.

Some use the factory linkage, but I didn't like the geometry so I made my own out of helm joints and threaded rod.

I also used a Summit throttle return kit. Much cleaner than adapting the factory springs.

The biggest challenge for me was the fuel line with PS and AC. I screwed around trying to snake it around the compressor and PS pump/bracket for a couple weeks and ended up going with rubber fuel line.

Allstar Performance ALL25944 Allstar Performance Air Filter Spacers | Summit Racing

Summit Racing SUM-G1327 Summit Racing® Throttle Return Spring Kits | Summit Racing

 

I think you'll be okay if you put an "S" bend in your fuel line and run it around the back of the distributor. A 90* fitting off the Summit inlet line might make it easier, too.

 

Awesome input. Thank you all.

I'm pretty set on keeping the heat riser, so I will try the thick gasket.

I did run across that thread while searching. My concern was the fuel filter on the intake. I don't mind running a older style with the filter on the pump. I think that would solve that problem.

The coil is more of an interference with the fuel outlet thing. I can move if it comes down to it. I will custom bend a new line if I can figure out the fittings.

This seems very promising so far.

 

Most people have good luck with the summit carbs and like them but quite a few of us had issues with high idling that were unresolvable. QC seems hit or miss.

 

I just purchased the 600, and one thing that wasn't documented in the instructions were the carburetor inlets. The Q&A on their website said "carburetors include a feed line that is 3/8 NPT inlet from your fuel system. The carburetor has 5/8-18 in. inverted flare fittings"

They must of changed it since this was posted, as all three were 5/8" IF.

I ended up going with a stainless steel braided hose for now, but may do a hard line once I get everything up and running. Definitely will take some bending with the A/C and P/S pump brackets.

 

I have been running the 600 as well for a couple of years now. I must be the odd ball as I had 2 new Holley 4160's in a row with a leak at the throttle shaft. That is what made me opt for the Summit one. It has been flawless so far.

 

Just did a 600cfm over the weekend with a 302 in my 68. It runs wayyy better. My carb was shot and needed a rebuild bad.

1. I run a 14" k&n drop base filter with issues. Had a quickfuel 580 with 1" spacer and I barely cleared the hood with the drop base
2. I had to rotate the coil about 10 degrees forward to clear the throttle bracket. I have a weiand stealth
3. No ac here

 

The stock location for the coil is on the front of the RH cylinder head. This was to aid in cooling the coil. It also gets it completely out of the way of the fuel line and air cleaner.

 

That’s how mine was setup. Redid the fuel line behind the distributor. You can see the throttle is close. I tilted it a little more forward and checked not contact with the coil.

I ran it better but still not 100 happy. Picked up some an fittings and cover for the line but trying to come up with a better routing. Might mine the coil

 

Have you thought about running a mostly stock steel fuel line in front of the dizzy and use a much shorter rubber hose. Your long hose look scary. Get a 65 style fuel pump with the built in filter and you only need one very short length of rubber hose.

 

I thought about using metal line but I have had issues in the past with heat issues being in texas. I am waiting for the last bit of parts but im converting the fuel pump & carb to 6an fittings at 90 degree to run it the same way but a shorter line. Also adding an earls fuel filter (see below) and heat shield sleeve for the line.

Earl's 731166ERL Earl's Vapor Guard™ Fuel Filter

Billet aluminum fuel filter for EFI (10 micron) applications. Use w/ 3/8" Vapor Guard Fuel Hose & Clamps.

www.holley.com