i recently purchased an 88 TA with an LB9,
i plan on swapping a 350 block and heads under all the factory fuel injection etc. and driving the car daily

id like to put a cam into it to produce some additional torque, and most likely a chip to match it. and within the next 6 months or so install a medium sized nitrouskit (around 100 shot)
the car will see a few hundred mile a week on the street and the strip mayyybe once a month.

(the car has headers, 3" flowmaster exhaust, and a rebuilt tranny/shift kit/stall converter also)

the advice im looking for is what cam woudl be reccommended, if anyone has any prefences on which nitrous kits are better than others.

the cams ive looked at are the tpi corevtte cam, (a little too small i think, and the LT1 hot cam, which i dont if its to big for what im doing????
any help would be great, thanks, Keith

 

If you're going to use stock L98 heads, look for a cam like a 208/218 or 210/220 and around .470" lift or so. That should give you some nice lowend. You'll also want new injectors for that 350. At least something like 22#'s instead of the 19#'s that come on LB9s. The large split-duration cams will help with the crappy exhaust ports on the stock heads as well as for the nitrous. Nitrous will have a greater effect when you have a larger duration exhaust profile.

As for a matching chip...don't get a mail order tune or an off the shelf tune like a Hyperchips Stage II or anything like that, they are junk. Learn to program yourself. Its actually not that hard at all. If I can begin to pick it up, anyone can.

100-shot nitrous kit should be okay on a stock bottom end as long as everything is checked out or rebuilt before installation. Just make sure all tolerances and bearings are good. I'd recommend cutting 2-3* of timing and using some plugs that are one step colder like an AC-Delco R44TS.

 

any idea of what kind of performance id get out of a simple combination of these mods??

i was hoping for 14.5-14.0 off nitrous, and as close to 13.0 on nitrous as possible..

is this attainable, and if not what would do it, and keep it extremely streetable.

PS, i have slicks and drag radials for the track, and the car currently has 3.42 gears

 

Doing the 350 with the larger injectors and tuning it with the new cam will get you to mid 14s, but sense you have the time, i would look at some new heads for it, or atleast do some porting to the L98 heads. Might even want to look in to a Holly Stealth Ram, so that when you tune it, you can get some more top end out of it. But the higher you rev it the more stress on the bottom end, and if its questionable before the N20 then with it, reving might not be such a good idea. A 100 shot should drop you into the 13s, im just not sure how low, the power is there for a mid 13sec pass im sure on a 100 shot.

Honestly i would rebuild a 350 so that you know the bottom end is good, if you want to run nitrous on it, u might just get the bug to go bigger, with a good rebuild and forged pistions, u can

If you want to really stay close on a budget, and your looking at upgrading the intake anyways, you could always hunt down a set of Vortec heads, get the HSR in the Vortec form. Just make sure your cam matches the heads limitations

Just the Vortecs on a 350, u will be in the 13's.