With the build I have listed under al head, topic check this out and running about 12 -13 PSI estimated, what may be a good ARF to start out with to work from and also I am hoping to run factory timing are maybe a little less with stock distributor since I am intercooled with a fan and temp is very mild in the summer where I live and some driving will be above 5000 ft and most above 6500 ft.