I have built my 32 Ford with a 5.0 L mustang engine. I had a superchip burnt for it by the local mustang shop. It has a GT 40 lower intake, explorer upper, 42 # injectors, 90 MM mass air, 65 mm accufab throttle body . It has a .569 lift cam with trickflow heads. I have set the timing at 10 deg. BTDC with the spout unplugged.
I got it running today but I am having problems. It runs perfect when its cold but as it warms up it starts to idle rough and by the time the fan kicks in it will back fire when you rev it up and sometimes it stalls. I am going to phone the guy on Monday who burnt the chip but I thought I'd ask what you think it is. My gut is telling me that it is running too lean. Opinions? Thanks.