Which engine/injection set up?

[NEWFISHER]

Hey guys, Im currently running a warmed up 350, World heads, cam Edlebrock torker and a 1406 etc 700r4 and 4:10s and am on the fence on which direction to go next and would like some input from those who have swapped before me. I drive it 70 miles round trip for work and even though the mpgs are not the best, it would be nice to be in the teens, if it doesn't change oh well. Would like to keep the old school look but love the smooth reliable power from the 5.3s in our crew cab and wife's Tahoe.

Use the existing engine and run a new Tri Power old school set up? I have never driven one, worked on one but love the look.

Use the existing set up and install the Holley Projection system I have and am familiar with which will also accept a traditional air cleaner, have the easy start better mpg qualities but be an aftermarket system on a daily vs a GM system.

Use the existing set up and toss on a reliable as the day is long Tuned Port set up. Good performance, mpgs etc but looks like an 80s camaro under the hood.

Stop wasting everyones time and just do an Ls swap already. More costly and time consuming than the above. Would never have to swap again but looks like a new truck under the hood.


Input from those who have been down this road before is greatly appreciated.

[special-K]

Swap the TPI. If looking like an '80s Camaro under the hood bothers you,what will looking at a way newer 5.3 make you feel? It just seems simple enough,you have a good motor now,and you can't beat factory reliability (and parts availability). the tri-carb set-up will give a cool nostalgic look and that's about it. You'll use less gas with a quadrajet.

[NEWFISHER]

Thanks for the input Special-K. Either Tuned Port or LS will obviously look new. The Tuned Port will cut down on costs as I can run it on this engine.

[Bigdav160]

Air Fuel ratio is Air fuel ratio

I don't believe fuel delivery systems make a lot of difference (with the exception of direct injection) with relation to fuel economy. I properly tuned carb with get nearly the same mileage as a properly tuned EFI

In any case I like EFI for it's improved drivability (no pumping the gas pedel to set the choke).

I have a Tuned Port in my Camaro. I'm installing a 350 with a Stealth Ram into my Suburban. I'm going to try a MegaSquirt 2 as it's engine management system.

[Z10]

How about a F.I.R.S.T TPI set up. Think of it as a TPI on steroids. See my build thread for more info. Nice stuff.