I put together a 465. It has k&t ported vitos cylinders on it. I am putting it alky from parts I had gathered from the years.I never had a motor on alky and need some help. It has 39 pwks pumper carbs. What should I set the timing at? what should the compression be for a alky motor? Are 39 pwks to small or should it have something have bigger carbs on it?