Sell the BBK SSI for a FAST setup?
your current intake is already supposed to be a little better than the ls6
if anything look for a deal on a used 85mm tb and call it good...otherwise IMO you might end up paying a lot of money for 5-10hp
you would be better off putting heads on during the cam swap with the extra money you would have tied in a FAST
My BBK was ported to clean up the casting and i was still using the 80mm tb.
Get the 85mm tb and clean up the inside of the intake. You will be happy as long as it doesnt leak
My BBK was ported to clean up the casting and i was still using the 80mm tb.
Get the 85mm tb and clean up the inside of the intake. You will be happy as long as it doesnt leak

remember you had a LS1 intake, I htink some people comenting didnt realize that.
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Studderin, how much did your FAST help you at the track vs the LS6 you had on there?
best was 11.12 or 11.27 with the LS6/ported TB, on slicks. 11.35 on stock/DRs. (404 whp or whatever when I tested the intkes)
went the 10.66's lighter weight, and good fall DA. so can't use that to compair really.
But went 11.25 or a 11.29? on stock/DR wheels. Went 10.8s and some 10.70s on the slicks in fall air. I'd say normally should run 11.1s 10.95s most good days now on slicks with the 92/92 and spool other little changes. I'm changeing things for next year now too

Hate to say this but check Egay for the TB, thats what I ran, you can't beat the price, You can port it too, still has a lip.
Look at it this way. When people ask what size headers they should get ( 1 3/4'' or 1 7/8''). Most of the times these are stock cubed and minor bolt on cars. People always tell them to get the smaller size. Why? I dont know. Theres been many of Dyno comparisons showing that the larger header, even on a bolt on car is better up top by more then the amount that you lose down low. Which is a minimal lose down low that you will never never never notice. But you will notice the gains up top. Plus the bigger header give you room to grow into a bigger cubed engine down the road.
Without having the need of selling and losing a couple of hundred on them. Then you have to make up the couple of hundred to buy the bigger headers.
Eventually you will want to sell the BBK, I would do it now and go for a fast. Fast are alot more affordable these days. I just saw a Mamofied FAST 90 90 for 900 go in the classifieds.
This is my advice based on my view point. Something to think about.
by my best educated guess I gained ~20rwhp with a ported fast 90/90 over the stock 98 ls1 intake, if I hadn't got it so cheap I would have been pissed...
since you will have to be tuned for the cam anyway tuning for the heads will be easier now IMO and if you still decide to blow the money on a FAST later a tune wouldn't be as necessary
Fast intakes are good, but they are IMO overpriced and people put them on a pedestal as some kinda holy grail mod
you will be damn lucky to get 10rwhp for your $1200 over what your are running now...subtract $400 for selling it and you still have $800 for that power
my $800 would be going for a set of heads that should get you 20-30+rwhp that will also come in handy on a better future engine
let me put it this way...would you spend $800 on an underdrive pulley? $800 for a tune? $800 for a cutout? because you are talking about the same gains, just those mods don't have the "mystique" of a FAST intake
just my $.02 and I'm sure some will disagree
the fast stuff is getting cheaper used, and that's unlikely to change...they might even continue to slide down later
still don't understand any logic in paying $1100+ for something you can get for $5-700...it's not a wear item
just trying to save you some grief, wish someone had done so for me...but I just fell into the hype and had to have it
I only have about $500 into my FAST 90/90 after selling my stock crap and that's just enough to keep me from serious buyers remorse
I believe the FAST TB has been fixed now
Don't you still have a stock 10bolt, stock cam, suspention on the car still. You sound like you wnat to be talked into getting a "better" fast 92 setup.
But after you do it, then what? Your up 6whp over what up have right now, spending a LOT of money on it. But you still have a bunch stock parts that need to be upgraded. I would hate to see you drop the coin on the 92 setup, get a good cam in the car. In spring and 2 weeks of driving the 10bolt dies. There are 50 other places of a lot more performance to gain, then getting a fast92 setup right now.






