[img]/phpBB/images/smiles/icon_cool.gif[/img]you will proably find that with the spreadbore you will have better throttle response through about 3k rpm, as well as better fuel economy. how much depends on your tuning and driving skills. after 3k both are going to be about equal performance wise, but you will lose a bit of fuel economy up high as oyu will have the "trash can" secondaries dumping fuel faster than a squareborecarb does.
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