OK cool. Once you grab your dial back timing light, see where that initial is set at. You’ll probably find more power when you can advance the initial a good bit.
For a small cost, A - FBO distributor timing limiting plate can be purchased and installed. This will allow maximum initial timing with the ability to limit the total timing. Your OEM heads will like about 36*’s or more.
Check your plug gap. OEM says a .035 gap is what should be done. A little more opening can help. You’ll know when you went to far as power falls off.
