I'm swapping in a 350 with 87 iron heads into my 86 FB, and want to know if there's anything I'll need to do with the stock LG4 Carb? Will my 305 manifold fit, or do I need a new one?

Oh yeah, forgot to mention I'm in CA, and the car needs to pass smog, which is why I'm asking about keeing the stock intake manifold. So if I do need to change the manifold it has to be 50 state legal.

Thanks,

GP

[This message has been edited by gpierce (edited December 04, 2001).]

 

Is the manifold from an 87 LG-4? If yes, it should bolt right up. If its from 86-prior, theres I think the two middle holes on each side that have to be elongated. Takes a few minutes with a drill, no big deal. You could also get an Edelbrock performer with EGR provisions.

 

The secondaries will benefit from tuning, but that's true even with the LG4.

Do something about that lousy exhaust, like TES or Hooker 2055's (SLPs if you're up to it), high flow 3" cat & catback. All smog legal. The 2055's have a CARB EO tag welded onto the #1 primary tube.

Temecula - I know where that is! (used to live in Lemon Grove)

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4, 2300 stall TC. Ported World 305 heads, Crane PowerMax 2050 cam. ZZ3/4 intake, oil pump, pan & baffle. Accel HEI SuperCoil & module. Hooker 2055 headers, 3" Catco cat & 3" catback w/dual-opposite Flowmaster 80. 2.93 limited slip. Spohn SFCs waiting to be installed. AMSOIL syn lubes bumper-to-bumper. Daily year-round driver. Best ET, speed TBD...
57 Bel Air, my 1st car. '66 396, 9.7:1 forged TRWs, Weiand Action+, Holley 750VS w/4150 conversion, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 700 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).

 

My Wife's parents live in Pagosa Springs

Yes, it is an 86 manifold. I do plan on the exhaust mods, but I need to get the engine replaced first. Priorities you know Stock 305 threw a rod, and I just happen to have a fresh 87 350 block and heads lying around

GP