I posted this on the main board, but wanted to ask here as well. Is anyone running or has anyone run a 4100. I'm planning on putting one on my 292 and I've heard good things about the reliability of these carbs. I just wanted some input as to some of the experiences with em. My pops has a 2100 on his 65' Comet's 289 and it runs awesome. Just hoping the 4100 is similar.
There is some good info on the 4100 on the www.y-blocksforever.com/forums/ website.From what I gather they are a reliable carb and seem to be better on mileage as opposed to a Holley 1850 that is commonly used.Hopefully you have the "B" intake you will use with it.
Yea, I've got the right intake. I'm mostly concerned since the engine isn't stock. It's opened up to a 301, and I'm running an Isky RPM-300 cam, "G" heads that have been cleaned up, and a C4 trans. I haven't been on Yblocksforever.com in a long while I'll go check it out. I cant believe I didn't think about them.
There are 2 4100 carburetors. There is a 108 ventury which is about 350CFM and there is a 112 ventury which is about 570CFM. The numbers are casted in a circle on the left side front of the carburetor. Both of these will work good on your 301 cubic inch motor. The 112 is more of a hipo carburetor. They were used on 271 hp, 289 mustangs, 352 and 390 FE motors in the mid to late 60"s. Carburetors are a lot of fun to work with, they are very forgiving.
The 4100 is a good way to go. Easy to rebuild and setup. The 1.12 is great for a mildly warmed 292. Suggestion: set your accelerator linkage to leanest squirt and see how tip in feels. If it's a little stumbly, richen it up until it feels good. You do all this by repositioning the accelerator rod in different holes at both ends. The lowest hole on the throttle end and the inner most hole on the accel pump end are the leanest setting because they give you the shortest travel, hence, smallest amount of fuel squirted. I've found the best for summer driving is inner on the pump end, 2nd or third up on the throttle linkage end.
The Jalopy Journal
