I'm having an L92 427 built: TFS 235 heads, 254/262 cam, FAST 92/92 intake/TB, 1 7/8 LTs...

I had been planning on using my old lid, stock bellows and stock MAF before I really thought about it. But I'm sure there is a better flowing set up. I know about 85+ MM MAFs, and I've heard about the TSP 100+ MM lid under development, but not so sure about what's out there otherwise... and the bigger question is, how much HP am I going to be leaving on the table by not upgrading? Is the K&N FIPK a good option, or should I just wait a few months for better options?

And will my old lid, etc even fit on the 92 mm TB? (I don't have my old lid, MAF, bellows handy at the moment to check...)

Thanks

 

bump, I have the same ?

 

this is my set up:
ls7 intake
FAST 90mm TB
TSP 100mm MAF
SLP lid
Im still not sure how exactly the fitment will end up, as the motor isn't in the car yet. But i plan on using a 4" silicone adapter in between the TB and MAF, and another 4" adapter in between the MAF and the Lid. I have read some post where guys took their lid and put the neck in boiling water, they were able to get the neck around a bigger MAF, but i aint trying it.

 

you can always ditch the maf and go sd, then you just need a big lid. i have an 85mm maf and 85mm ftp lid going to a 90mm nw tb.