Spoon flywheel or not, a lightened flywheel will rev faster, which means ur vtec zone arrives sooner than stock which is gd.. as b16a is virtually torqueless and needs such help alot..
But, Spoon flywheel are expensive, so try cheaper brands.. Dun jus pull engine out to install a flywheel.. Do it as u said with a clutch swap since ur clutch not working so gd.. And V6 mivec is lucky becoz he had torque.. With the below mods of saving weight, i mention u should match him... If u race him again, at least make sure its safe on roads.. no other cars at all..
IMO, with SPOON flywheel that i have, i felt a small lil diff in acceleration which makes it at least a useful mod..But hard to justify the $$ spent as we are all playing N/a which is not cheap.. To feel any real acceleration/pickup improvement, get the light flywheel and clutch combo, get really light 15" rims, strip the car(FREE!!!) and lose weight(FREE!!!) if u are sort of a chucky fella..lol..
anyway some ppl in this forum loves discouraging ppl from doing every single mod becoz they say everything is marginal.. It all adds up..So do ur own research, gather different opinions and do wat u tink is best.. Good luck..

