silverstreak98maro

iTrader: (7)

so ive got a 98 stock bottomend ls1 in my camaro its got stock maf,stock ported tb,and ls6 ported both tb n intake at 78mm. tsp stage 2.5 243 heads and custom futral cam 236/242 612/620@112+4. i need merge y installed i now have slp catback with jett hot headers but restrictive pace y pipe but on 95 degree day with paper air filter and plugs gapped wrong it put down 438/403 to the tires my question is how much would i benefit from goin bigger intake tb setup like fast 90/90 and maf would it be worth the money to do so thanks in advance