Need to lower comp. 383 sbc build

I purchased a new 383 short block with a zero deck and flat tops. (Cheap price, could not pass up...) I need to lower the compression into the low 10-1 range so it will run on pump gas. I have 2 pairs of 882 heads that are 76cc. One pair is drilled for steam. Are these heads worth using on a budget street rod build? Both pairs need rebuilding. Can the steam holed heads be used on a 350/383 block? The engine will have ram horn exhaust manifolds and a tri-power intake with a Isky 280 cam, duration @.05 is 230. Or should i look into something else? Looking for the best bang for the buck...Suggestions?
thanks.