Thread: Tpi-350

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I'm looking to upgrade my 305 tpi, to a 350 tpi, cause I want more hp!, and I blew up my 305.lol. Anyone know any reputable engine builders????

Instead of streets they should call you tips!
Thanks.

Man i hate to tell you this. But going to the 350 TPI you are only gaining about 10HP and it isnt worth the hassle. I would do away with the TPI set up and go with a good carb.

F. Y .I the chevy 305 tpi intake and the chevy 350 tpi are exactly the same!It was designed for the 305 anyway and just used on the 350 to cut design and manufacture costs!

From what I've learnt the FACTORY 350 has about 10 more hp, but I do not want factory hp. I've done the fuel Injection conversion already, and do not wish to go back to the sloppy feul economy of a carb

The intake from what I understand is a bit under sized but that is not the problem with the tpi, the prom chip has to be reprogramed but i can get upwards of 5900 rpm, opposed to the factory 4400-4500. More POWER!!!!

i beleive the only thing different in the tuned port injection from the 305 to the 350 is that the 305 have smaller injectors. if it was tuned port i personally would leave it tuned port . guys that tell you to swap it to a carb dont realize how much reliability and throttle response you get from them. i have swapped a tuned port engine from my iroc and converted it to a carb engine.(totally different engine)to do it right it can be a time consuming project. and the money i inveseted in the project i wish i would have just stayed with the tuned port. (i went overkill with everything ).

I agree with the trottle response, reliablity, but the feul economy these days is ever so important! But I still need a builder any help???????