9/24/2023 0 Comments Vortec 350 cam upgrade![]() ![]() If you want good horsepower numbers from your car that intake has to go. Changing runers can help some but still perpetuating that long runner torque only design. In a jeep or 4×4, great low end torque although still 8 places for vacuum leaks. with a base intake, a plenum and then 4 long runers giving 8 problematic places for vacuum leaks and those long runners just kill any top end power potential. Just reminds of another of GM’s screw-ups and poor design. Next is that intake manifold, for some reason people seem to like the looks of it. I recommend you get a block off kit off ebay and remove the thing and tell me when you order a chip so that I can program the chip to run with the other 8 injectors and that will solve a lot of cold start issues on these cars. ![]() The worst piece on the whole TPI system is the cold start injector or referred to as the 9th injector. ![]()
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