gassersrule, your not the only 283 guy here, my 283 has 461X casting double hump heads, they have been decked, it had 11:1 slugs, with a high rise single plane edelbrock intake and a 650 holley with a .530 lift cam and .230 lift @.50, it will scoot, i had it in a porsche 914 but i am currently putting it in a 1984 S-10