Technical Cross ram info needed

I'm Curious about cross ram intakes (as I have a couple) I'm referring to the old log ram style not the more modern units used on like the DZ 302 Chevy cars and AMC. Ive read a lot online about them some people say mild engine build and small carbs others go the opposite. I'm planning to use one on an upcoming build and want to get the engine combo close (IE right cam compression etc) before it goes in the car and gets tuned. I would like to hear from people who have run these in the past if possible and see what I can learn

 

pictures! and what are your plans for the car? is it a show car, cruiser, or a race car, or combination?

 

Ill get some pictures up. This is a 65 falcon wagon (if you notice my profile pic i have a trend lol) The short block is an internally balanced 331 I have a set of high compression pistons for it (13:1) which would be doable with methanol injection but i have no problem getting a different piston. Cam options are Holman Moody 882 Le mans cam (.528/.528 @250* 107 LSA) or a couple Hydraulic rollers with a bit more lift and LSA and less duration. I plan to use a set of world products heads 2.02/ 1.600 valves and trickflow roller rockers (1.6 ratio) AODE trans and a 4.10 rear. To me this is street car stuff but opinions tend to vary lol. The intake is an Edlebrock unit with Holly 600s

 

X-F8?

 

Yeah So as far as I know it's a true log ram with no crossover of any kind (side note it will be dyno tuned so just want to lock down the overall combo not really jets and power valves etc)

 

They say that some spacers under the carbs are a big help.

 

i was considering that do you know if open spacers are used or a 4 hole design?

 

You may just have to try both.
The carbs you use may determine which will work best.
Most use open to add more volume to help combat the reversion.

 

And add more plenum volume because they don't appear to be too big

 

The reversion issue is one of my biggest concerns honestly.

 

With this style intake you have to have the mine set to tune two inline 4 cylinders hooked to the same crank.

 

1 question , what trans - stick or auto ( converter) SS.

 

AODE is the trans 4 speed OD automatic haven't picked a converter yet I will when I get the engine tuned I'm guessing it will be 3000+ stall but I could be way off

 

Be better with a stick. Would look better on my Morris Minor 4 speed G***er if you can't make it work. My high compression 306 with a .600 solid roller.
Might be soggy unless you get the right convertor.

 

I agree a stick would be better. I have a close ratio toploader that would be ideal but I want an OD a t5 won't hold up and a gear vendors unit or a t56 is out of the price range currently

 

I have had good luck with B&M convertors with AOD 's.

 

I like B&M's products as well.

 

I had bad luck with a B&M converter.....but that was years ago.

 

The last 3 AOD's I have installed . Got 2500 stall B&M convertors.

 

Maybe it was that big block chevy that took it out.

 

To aid in the reversion issue, weld the outside of the header tubes real well then port em so they're bigger than the head ports. Any reversion from the exhaust is cut by the square of the difference. It creates a high flow boundary layer while the engine is at it's power curve. Works better than many give it credit for. With the right ability it's also free.

 

That is largely a camshaft issue, as I have discovered.

You might want a wider LSA than 107º. That will likely have a angry idle, and quite a bit of reversion.

 

Back in "the day" there were anti-reversion headers. I have not seen a pair in a long time for an American V8, though.

Imagine this, but on each primary, right against the head: