Quote:
Originally Posted by 68LS1
Hi, my 1968 Camaro with LS1 & 6 speed will have been doing duty for 4 years shortly. I think an update is in order.
I purchased a 416 cubic inch LS3 making a little more than 650hp locally. It is running a Holley Hi Ram with 2 x 1000cfm throttle bodies.
My dilema revolves around which intake to run. Current LS1 has Fast setup on it.
There is always an ITB such as http://www.harrop.com.au/eng_detail....d=99-AMFD11311
But I wanted to revert to a more retro look, so an option was the Edelbrock Victor Jr EFI manifold, with 4 barrel TB & air cleaner
Was surprised about advertised rpm of manifold, 3,500 - 7,500, which seems not ideal for mainly street use, but unable to find another intake with lower power band rev range.
Also is there an option for fuel rails except the Edelbrock ones, the brackets that hold the fuel rails look so cheap.
Looking for suggestions on throttle body, I'm inclined for the FAST 1375cfm, which I think should be adequate. http://www.fuelairspark.com/fas/4-ba...fastenershtml/
Also which injectors to use, will the 42lbs be good or do I need to go to a bigger one, maybe 60lb
Any suggestions happily received, been banging this one around my head for too long now 
thanks |
I did a similar build using a sleeved LS2 block (427") with LS7 heads, FAST 4-barrel TB, GM LS7 single plane intake, FAST 58 lb injectors, and a GM ECM. If you click on the link in my signature there is more information on the build. The port fuel injected single plane intake works well, and drives fine on the street. GM performance makes a single plane intake for LS3 and LS7 engines. The GM intakes are just a bit lower profile than the Victor Jr.
I was also looking for the retro look of the single plane versus using the LS style intake. Good luck with the build
