Join Date: May 2009
Location: Texas Hill Country
Just got the carb installed lastnight and my first impression was WOW! Throttle responce is great, smooth and powerful transition through the circuits and really strong top end. 3500 rpm came very easily and it continued to have strong power into third gear. I thought it was chugging a little just off idle at 600 rpm until I realized I was still in 2nd gear. That corner always required a downshift into 1st with the BBD so that's a good thing. Definitely not over-carburated.
I still have some adjusting to do, though. I thought I had the float adjustment procedure correct in my mind from a conversation with Redline but, after discussing this with MCMUD, (thanks again!) I realized that I didn't do it correctly. Not that Redline told me something different, I just didn't comprehend what he was telling me and I hadn't seen the float assembly yet so I didn't have a visual reference to add to the conversation. It's a touch lean on the top end which adds further evidence that I didn't do it right. Hoping to address that here shortly.
The engine was happiest at 2 turns out on the mixture screws and is pretty stinky. It's visually clean and crisp but burns your eyes. I know that's a bit too far out on the screws so I'm going to address that as well. Idle speed screw was just a smidge under 1/2 turn in from contact.
So other than some minor tuning, this carb seems to have great potential and is making me second guess the 350 swap I was gathering info about on another thread.
I'll pop back in soon with a progress report. As always, any comments or advise is always appreciated.
Last edited by swatson454; 12-24-2009 at 09:50 AM.