92 K1500 TBI 350

Headers are worth it! Not a big deal to install.Also do a good air intake,and mass air meter. Why do you need more power?

TBI's do not HAVE a "mass air meter" or mass airflow sensor as they are properly termed.

Doc

Your right! Don`t know what the hell I was thinking. Maybe not at all.

TBI motors didn't come with a true dual exhaust. it was a Y pipe into a single cat then split back into 2 pipes at the muffler. headers are definately worth it for these motors. the biggest improvement you'll get is from new heads. the TBI heads suck big time.

-Bret

No, he means a stock motor with true duals. At least that's what I read.

GMC Gremlin

Exhaust is not stock

Yea I'm aware that different heads certainly would help. But if one wanted to retain the TBI setup you're limited in what you can do. As far as I know.

2) go with (the only aftermarket setup I know of) the GM "aftermarket" TBI intake that matches the "fast burn" heads and also install the fast burn heads. Other than that I'm not aware of a TBI intake that you could run on the older style high performance heads. Different bolt pattern on the heads and intake.

I thought the question was "how much power can I get" and still have a daily driver type vehicle.

I feel that the TBI setup, although good does not make enough power...at least for me anyway.

If you take the throttle body >Headers are worth it! Not a big deal to install.Also do a good air

the stock TBI intake will bolt up to any '87 up performance heads. buying a set of 'vette heads out of a scrapyard would be alot better than the super crappy TBI heads. the only difference between the pre and post '87 heads are two canted bolts in the center of the heads...

another thing I should mentnion is that early 454 TBI motors used a spreadbore intake with an adapter for the TBI on it. if you can get ahold of one of these adapters, you can pretty much use any intake on the market.

If I can ever spare the cash, I'm going to put the GMPP TBI for vortec intake and a set of Vortec heads on my '88 350 TBI.

hth, Bret

It should be an Edelbrock RPM. Change the cam and heads.

Scrap theTBI,and put on a carb. Much easier to deal with.

I'm not sure how in the hell a carb is easier to deal with.... nothing like flooding your engine out with a stuck choke on a cold winters morning.

-Bret

Stuck choke? Never had that problem. Atleast you can tune a carb. You would also get more torque from a carb.HP is about the same.

I've been tempted to do that....and I would if I were looking to max the power. But I dont' think you can beat fuel injection for all around "daily driver". Even though the TBI motors are kind of wimpy, they do start at all temp ranges and will idle for hours with no problem.