holley tbi

396chevy · 08-30-2006, 01:16 PM

ok im thinking of upgradeing to a holley tbi on my 1989chevy k1500 with the 5.7 but i have a few questions for one the holley has a 2 inch bore is there a spacer that converts from 2inch to stock manifold of 1 13/16 inch at least thats what i think is is. can i use an injector spacer on the holley. do i kneed a diffrent manifold? any advice would be great. thanks 396chevy

bradrhale · 08-30-2006, 01:27 PM

the best i can remember you wont need a new manifold. summitracing makes a conversion kit that includes everything that you will need including the wiring harnesses and throttle body. you have an option of 2 and 4 brl. i think that a 700 cfm 4 brl sells for about 750. but that has been a little while ago. that will be your best bet if you want to do a conversion.

08-30-2006, 01:16 PM	#1
396chevy Full Member Join Date: Aug 2005 Posts: 43	holley tbi ok im thinking of upgradeing to a holley tbi on my 1989chevy k1500 with the 5.7 but i have a few questions for one the holley has a 2 inch bore is there a spacer that converts from 2inch to stock manifold of 1 13/16 inch at least thats what i think is is. can i use an injector spacer on the holley. do i kneed a diffrent manifold? any advice would be great. thanks 396chevy

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08-30-2006, 01:27 PM	#2
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,025	the best i can remember you wont need a new manifold. summitracing makes a conversion kit that includes everything that you will need including the wiring harnesses and throttle body. you have an option of 2 and 4 brl. i think that a 700 cfm 4 brl sells for about 750. but that has been a little while ago. that will be your best bet if you want to do a conversion.