2 carters Cont.

[Anonymous]

ok so i have the head apart and the port devider in. Now i am wondering would it make a difference if i centered the carbs or if i just made the measurement and put the second carb behind the stock locaton. In theory i could make my marks clean the surface drill the intake hole and drill the two bolt holes for the adaptor plate, buy some think gasket material and fab up a plate to make the carbs equal height. i found the artical where he used YF's off a 300 and he said it was boggish however i will be using Yf's off a 200 witch in theory should produce a small CFM. now to cover the linkage, anyone have any ideas on how to fab a progressive linkage. I wonder performance numbers do you think about 3k rpm it would take off like a rocket??


Wes

 

[Anonymous]

I would suggest straight linkage with the carbs centered on #'s 2 and 5 cylinders which would allow the most even fuel distribution. This type of setup has been done for many years on boat motors. I actually had drawn this all up then instead went all out and went with 3 carbs totalling 4bbl's instead.
I have an old inboard outboard with a 4Cyl chevy engine with 2 small YF's on it--it is rated at 120HP.

 

[Soldmy66]

Have you given any thought about making a divider of some type that would be made part of (@ a 90 degree angle) the block off plate bolted to the original carb mounting hole? This divider would insert down through the original carb hole and create two different plenums, while still allowing some vacuum balance between the two “halvesâ€￾. Effectively this would yield one carb per three cylinders, rather than two carbs feeding six cylinders.