Originally Posted by varunner
Thanks for the info guys. Mattax, this is a stock eliminator race engine.

I've done a fair amount of working on this carb and it's functioning "OK" but could use quite a bit of fine tuning. As far as the IFR goes, the engine idles decent, but has wanted to die when put in gear. So I'm pretty sure it's lean. The idle rpm is pretty hign, 1300ish. I wonder if I could simply reduce IAB and have the idle mixture screws a little further out ?


I need to better understand the circuit before suggesting anything permanent.
It looks like the IFR is in the bottom of the tube and from what you're saying the IAB's are in the normal location.
Are the idle mix screws in the standard location etc?
A relatively easy experiment would be to stick some wire in the IABs.

Are you using the Direct Connection 'Tach Drive' distributor?
Could be losing timing with rpm if idling at 1300 with any distributor, but the race distributors its a little worse.