those heads should work well with that combination. had an almost identical combo in an old pickup i had. same cubic inch, same camshaft, same size converter, only difference was the heads (882 heads with the bowls blended, and 1.94/1.50 valves). truck ran 13.40's with a open diff and weighed in at 4160lbs with me in it. should be great combo in a lighter car and should pull good to about 5800.