318 with 360-587 1.88 heads

284 will work fine its a mild hyd
once was running cch-302 in stock 318 couldnt turn a tire off the line but would wind out with 3.08 gears, slotted in 284 and would smoke 1st into 2nd in a '65 Valiant
ive run the cch-302 in a stock '78 block low comp 318 to the tune of 13.9@102 in a '72 Duster
about to slot a .557 purple solid into a std bore '74 block with eddy heads