87 tbi upgrades - The 1947 - Present Chevrolet & GMC Truck Message Board Network

01-11-2018, 04:18 PM

DieselSJ

Registered User

Join Date: Jun 2016

Location: Phoenix, AZ

Posts: 574

Re: 87 tbi upgrades

Quote:

Originally Posted by Nick_R_23

TBI and horsepower don't really belong in the same sentence.

That is a rumor that is spread by people who do not know how to work with them. There are guys over on the 454SS forums who are pumping out over 600HP with TBI. Great tuning tools are available for the computers. The injectors will handle more than 60psi of fuel pressure so they will support a lot of HP. Big block versions flow 670cfm and they can be bored bigger.

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87 R30 CC Dually, TBI 454, NV4500, zero rust barn find
87 Jeep Grand Wagoneer, 6.5 turbodiesel, 700R4

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