New Motor & Injection Installed - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**GMCPaul** · 05-27-2002, 08:53 AM

Well we just recently finished installing a new GM TBI motor after adding a roller cam and Edelbrock's Multi-Point Fuel Injection system, with a hi-flo cat and 3" dual cat back exhaust in our 88 GMC 3/4 ton 4X4 and I gotta say WOW!!!!! If your looking for perfomance and response this is a winning system!! We had to delete a few intake manifold brackets 1 for AC on drivers side that went to center of intake passenger side, a rear brace for idler pulley, and the rear brace for alternator that runs to mid point on drivers side on intake. No noticeable give or flex was noticed by removing these. Due to ours being a 1988 using the Edelbrock system we had to install a 90 degree on fuel rail fitting to install the front fuel line, other than these minor mods not mentioned in their instructions its really a very straight forward swap and the performance gains are EXTREMELY noticable THROUGHOUT the entire operating range I felt. We haven't had a chance to get it on a dyno yet but there is a definet large gain.
GMCPaul

Purs · 05-27-2002, 04:13 PM

Congrats on the swap! I just read the info on edelbrocks website. Is it better/more cost effective than trying to find a TPI setup? just got pricing info off of jegs. thanks.

05-27-2002, 08:53 AM	#1
GMCPaul Senior Member Join Date: Mar 2000 Location: Rockville,In. USA Posts: 3,718	New Motor & Injection Installed Well we just recently finished installing a new GM TBI motor after adding a roller cam and Edelbrock's Multi-Point Fuel Injection system, with a hi-flo cat and 3" dual cat back exhaust in our 88 GMC 3/4 ton 4X4 and I gotta say WOW!!!!! If your looking for perfomance and response this is a winning system!! We had to delete a few intake manifold brackets 1 for AC on drivers side that went to center of intake passenger side, a rear brace for idler pulley, and the rear brace for alternator that runs to mid point on drivers side on intake. No noticeable give or flex was noticed by removing these. Due to ours being a 1988 using the Edelbrock system we had to install a 90 degree on fuel rail fitting to install the front fuel line, other than these minor mods not mentioned in their instructions its really a very straight forward swap and the performance gains are EXTREMELY noticable THROUGHOUT the entire operating range I felt. We haven't had a chance to get it on a dyno yet but there is a definet large gain. GMCPaul __________________ Secure Online Catalog for-GMCPauls Truck Parts Email- GMCPAULS@GMAIL.COM

05-27-2002, 04:13 PM	#2
Purs Got Big Block? Join Date: Apr 2000 Location: West Texas Posts: 1,510	Hey Paul Congrats on the swap! I just read the info on edelbrocks website. Is it better/more cost effective than trying to find a TPI setup? just got pricing info off of jegs. thanks. __________________ "Experience is what you get when you didn't get what you wanted." Last edited by Purs; 05-27-2002 at 04:20 PM.



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