OK I have a 4 barrel intake for my late model flathead. I was going to put an early 4 barrel on but I picked up an original adapter for 2x2's. OK on a traditional 2x2 1 carb feeds 4 ports & the other carb feeds the other 4 ports. right? so if I put 2x2 on a 4 barrel, should I have a progressive or non progressive system. would there be a difference. also, would this change anything on the performance of my distributor? Thanks in advance Shawn
Normally I think the 2-2 adapters for a late model 4 bbl intake look stupid but I don't recall ever seeing one for the small bolt pattern intake. I think it's pretty cool. Hook it up straight and get a carb syncronizer to balance them.
OK so because there 97's does the jetting need to change, do I need to run a hotter spark, dual points or anything like this. I was going to run a modern mallory but I have been reading other post about it & a stock with dual points seams the way to go. And check the plug about every 1500-2000 mile to see how lean it is
also this adapter will only fit the smaller carbs. so I thought it would look pretty cool too. I don't know if it is 50s or 60s. But it seems that the repro ones now fit the larger carbs.
flatheads love a hot'r spark...depend's on cam weather or not u need to re-jet them.. what exactly is ur set up?
What you will find out is you will use less throttle in normal driving. Gas mileage will stay the same untill you stomp on it. Setting your linkage so they both match is the single most important thing everything else is mostly foo foo.
Jason, right now the long block is stock. I am doing things as I can afford them. I have 2 97's. they need rebuild. (looking for a good re-builder) then ignition, cam. the engine was rebuilt in the mid 60s by Sears. I haven't had it magged. but I was told it had less than 20000 on the rebuild
You can most definitely run that progressively - you might even like it better. But certainly try it with straight linkage and see how you like it.
You will have to change the jetting to get it to run right on . It will run ok as is though, but expect to carbon up .Also , block off the fuel dump on the secondary carb .Give it the fattest spark you can muster , think MSD Blaster ! Ditch the riginal dizzy ,only good for a Kosh!
ur gonna want to run .42 or.43 on ur main jets... run the carbs together not progressive.if ur runnin 12volt then step up to a msd 6a box and blaster 2 coil. u can use the points in the dist. to trigger the msd box. the isky cams offered r the best and most trouble free.the carbs.... call baxter's ford parts or get new ones from clive at stromberg. i have the new ones on my sedan and they'r awsome! on my 32 i have some from baxter's and they'r awsome! so its up to u.
I ran these 2 97s with straight linkage with no problems at all on a rather worn but stock 51 Merc engine. If you are really a tuner you can play around with the jets. There's no telling what jets were swapped out along the line before you buy flea market carbs. If you run them straight you will need to syncronize them. It's not difficult. I got lucky and bought an old Mallory that uses only mechanical advance. The original Ford dist used an odd vacuum advance that does not work well with multiple carbs and the 97s don't have vacuum ports. I learned this later reading on the net. It was beginners luck that I used the early Mallory on mine. I don't like the look of the modern flathead dists. I love the look of the early Mallory. They are still out there. I bought one for 20 bucks only a couple of years ago. One of the smart guys on the Ford barn explained it pretty well when he said that any particular carb has no idea how many other carbs are feeding the same engine all it does, is sense the amount of air that is flowing through it at any particular time. The jets are sized based on a known air flow capacity of that make carb. I'm running 2 97s on my 259 Stude engine with straight linkage and stock jets also. There is no reason to complicate it too much. JMO
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