After searching and not finding the info I'm wanting, I'm posting this. What would it take to use the ZZ4 intake manifold with fastburn heads under a TBI unit? ------------------ ~ Cheston Phillips ~ =Impalaitis ~ = tri9_SS '96 BBB Impala SS "ADIOSS" & '91 white Caprice 'n0n 9c1' w/L03

ZZ4 intake is just like a edelbrock performer. I think it would be too small for the fast burn heads.

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

To be installed eventually far far far into the future: Yours if the price is right and I don't have to ship :
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz

As for answering your question, a tbi adapter plate. About $40 to $50 from Holley.