allright,


ditching the cam and intake in this engine

gonna go with a comp xe274 and air-gap intake

question is what about the carb?? i did some searching and found a 650 dp should do the trick. what do you all think??

im lookin at the speed demon 650 or holley 650 dp.

any help would be appreciated


thanks

 

by the way lookin for mid 12's

thanks

 

with your 700r4 and mild converter, i would look into a vacuum secondary carb. The 3310 is a nice carb and very easy to tune on. If your heart is set on a double pumper..go with the demon, much better quality.

 

just did some research.....do you think that the cam is to radical??
i wanna keep my a/c

i kinda have my heart set on the xe274

what do ya'll think? im gonna talk to my mechanic thursday to see what he thinks. what would be the easiest and best bang for the buck swap???

thanks

 

One of the reasons this board exists is to help us avoid making the same mistake someone else already made.

Specifically, DP vs. VS. Honestly, I can't think of a reason to use a VS carb in a performance application. Towing, perhaps, but not on a vehicle where you talk about 1/4 mile ETs.

See this post https://www.thirdgen.org/techbb2/sho...hreadid=192317 . Look at the linked chart. Draw a line using your values.

Any doubt now whether your 650 DP is too much?

Did you see this post? https://www.thirdgen.org/techbb2/sho...hreadid=198832 Be sure to look at the linked thread in it, too.

The "mistake" I'm referring to at the top of this reply was buying a 750 VS 2 years ago instead of a 750 DP. Summit says the Proform 750 DP main body is on its way to my doorstep.

 

five7kid you rule

i saw both those post and i agree. i believe the 650 double pumper should work jut fine with this setup.

glad to hear you had luk with your carb.

ill keep ya'll posted

 

I agree with the DP's. I have a Speed Demon 850DP on my 406 with an automatic and really like it.

 

145 mph trips to Target will take even less time...

 

if you haven't bought your intake yet, I have a great deal on a polished one I'm selling. I can get a pic if your interested

 

SENT YOU A PM

 

Can the HO heads take that much lift w/o machining?

Make sure the intake you're considering is for Vortecs.

 

i know. i have yet to talk to him about it yet.

i am concerned about the lift but from what i hear you can't machine these heads to much because they come pretty much set to their potential.

 

Yes this intake will fit old and new style heads.

 

ok here is 1 of 2 pics of the intake

 

Is there and intake that will fit both vortec and non vortec style heads? I was not aware of one.

 

2 of 2

 

Yes I agree, I wasn't aware of that either but after talking to the sales man I was surprised to find out there was. After looking at the intake he was right

 

Will the intake ports on this intake cover the raised intake ports on the vortec heads. Being drilled for both isn't the only consideration.

 

i saw that same intake on ebay for 180 new. sorry

 

That's not a Vortec intake. The dual-pattern things are typically "normal" SBC that have been drilled and can be bolted to Vortec heads. They don't line up properly with Vortec ports, however.

Use a proper Vortec manifold.