I have a 302 which I am using an Edelbrock F4B manifold. I know some HEI distributers will not fit. Don't want points. Any suggestion on a good distributer that will fit and leave room for adjustment? Summit suggest their SUM 850303-1, any experience? Speedway suggest their 30001 Powerfire which has an external timming adjustment and the other was Proform 66969B (cheapest). Thanks for any help