Mark, What intake are you currently running on this engine? Do you have the bypass hose on the water neck blocked off or is it installed? How about the heat cross over tube, is it installed or blocked off? Do you have a choke and is it set properly? There is a number of things that could cause it to stumble during initial acceleration. You could have a leak in the carb somewhere, your intake charge can be too cold causing the fuel to not atomize properly, timing can be off, you might be dumping too much fuel when you hit the throttle hard, choke not working properly etc. Ten minutes for the car to warm up to a point where it is running properly sounds excessive. If the car is running at an idle sitting still, it will take longer for it to get up to operating temp especially if it is cold out side but it should be warm enough to run without the choke within a couple minutes. It does not need to get up to 180 before it will run without problems. It just sounds like your tuning is too far off, you have a leak in the carb or choke not working properly. Does this go away after the engine is nice and hot? Nick Alfano Message-ID: <20050211023859.52860.qmail@xxxxxxxxxxxxxxxxxxxxxxx> Date: Thu, 10 Feb 2005 18:38:59 -0800 (PST) From: Mark Ogulnick <chicago0516@xxxxxxxxx> Subject: Carb Problem To: mail@xxxxxxxxxxxx Last night, Larry Daum and I took my SC 360 clone for a spin. When he stomped on it, the car didn't take off like you would expect. It balked and hesitated before it picked up speed. It also takes about 10 minutes to warm up in the morning. Any less and it will stall when you accelerate or if it doesn't stall, it will "pop" through the carb several times. Larry thinks it may be running too rich or not jetted right. The carb is a Carter AFB performance 4-bbl. I'm thinking of switching to an Edlebrock 600 cfm Performer 4-bbl. and possibly an Edlebrock intake. I'm seeking suggestions for my carb problem. I also want to know if replacing the Carter with an Edlebrock is a good idea. Also, I'm thinking of going with an MSD ignition. Any comments or suggestions would be appreciated. Mark Ogulnick Boulder City, NV