misery motorsports

I have a 05 ls2 with msd 6010, edelbrock performer rpm intake, L92(LS3)
heads, big cam, full custom headers and exhaust, 2800 stall torque converter..

right now I have a Edelbrock thunder series 650 but wanna upgrade to a Holley 750 or 800 and have no clue where to start? its a off road race truck ..I see a lot more of the 50mph-100mph range and a lot higher rpms like 3500-7000rpm .. and if im going to buy one and spend the money I want a really good one.. any big difference between 4150, 4500 dominators or the new ultra hp's ?

speedtigger

iTrader: (16)

As far as I know, Edelbrock does not make a Performer RPM intake for the LS3/L92 square port heads. And, based on your description of RPM range, you would not want to choose that one if they did. You would want the Victor Junior. What are the specs on your cam?

misery motorsports

I have the performer rpm rpm intake on there right now with the stock ls2 243 heads but the new l92 heads, cam are sitting on the work bench about to go in. I didn't know the intake wouldn't work but if not then I will have to change that as well. and I am not sure on the cam specs I can find out

speedtigger

iTrader: (16)

You will have to get a Victor Jr for square port heads. My favorite Holley style carbs are the Quick Fuel brand carbs. The carbs in your range are the 750, 850 and 950.

TXsilverado

iTrader: (18)

you would probably save a lot of money learning what's actually in your motor and putting a correct setup together instead of throwing parts at a motor and hoping it works. LS6 heads will want a completely different cam than a L92 headed motor...and you dont even know your current cam specs. you could possibly be on the path of accidentally losing some power by changing heads/intake.