High compression blues.

hosehead said
Tim from Bullet's custom grind:
247/251@50
546/557 lift
109 lsa

My small block in my D-50 is 10.9 comp. with a 255/266 @.050 cam with 195-200 lbs cylinder pressure. Mine was built for 91 octane but have never ran anything but 93. It has never detonated. I run my timing at 35*.