[ha_pe_1968]

Hi Gus!
Easy decision - do what most do...order the 427R and try to make it a lil bit more street friendly :-)
The lumy idle sound and the pull over 3.500rpm will help to forget that you do not have the engine which you wanted and which make sense.
Order with a dual plane intake, go for a smaller carburetor with mechanical secondaries, check the ignition curve and you will be more or less happy :-)

Peter