trigrip

I just installed 424 in 98 vette with AFR heads done by TEA(full race port). With a FLP A4 it dynoed 496 rwhp with T/C locked. Installed fast 90 with NW 90 TB and picked up only 5 rwhp. I had the LS6 intake with ported 78 MM TB. I changed the coupler to fit the 90 TB but I'm using the same breathless performance air bridge with the stock 98 year MAF with ported ends. It hits max HP at 5300 and flat lines to 6800. I'm thinking the maf may be maxed out and holding it back. If I change to the larger maf what air bridge should I use?
Anybody using this combo got a sugestion?

Thanks

cyphur

iTrader: (10)

What injectors are you using? Looks like your cam is not pulling too far, i mean 346 cams that aren't even max effort peak beyond 6k. FAST 90 setup will help, but if your cam isn't taking advantage of it than its not going to be a miracle mod.

trigrip

Cam is Futral 239/244 dur 610/619 lift on 114 LS
using 30lb SVO injectors

strokedls1

iTrader: (1)

Those injectors may be close to maxed. Check out the pulse width at wide open throttle.

trigrip

At 57psi fuel presure the 30lb SVO's become 36lb. They still have plenty of room.

Anybody else have an opinion?