Hey guys! What intake and carb would you recommend and why?

Wieand Stealth, Performer RPM, Air Gap, victor jr? Or should I go single plain?

Carbs; whatcha thinking?

I have tried absolutely everything to get my fuel injection running but cannot; so it's getting sold. Never the less, the longblock will not get torn apart, it's staying the same. It consists of:

-trickfow TW 170cc heads
-trickflow .600" lift valve springs
-trickflow 1.7rr's
-trickflow 6.5" pushrods
- comp xe270hr-12 cam (218/224 duration at.50", 112 lobe, .544/.544 lift, 1800-5800rpms)
- comp lifters
- meziere el. water pump
-u/d pullies
-a/c & smog delete.
-new oil pump
-new main/cam bearings
-stock block, but cylinder walls honed and crank polished.

I've also got a walbro 255 el. fuel pump.. should still be able to use that as long as I got an adj. fp regulator right?

Suppose I should also tell you that she's got a tko500 and 4:10's in the rear.
This is not a daily driver, it's just my fun street/strip toy so I'm looking for maximum performance in the 1/4! (I know... who isn't?)... but just thought I'd fill ya in.

Thanks so much guys, it's greatly appreciated!

 

AND AIR GAP AND A 650 might work okay but you could also do a single plane and tune the carb to run just as well

 

.. maybe it's just cause it's late... but that sentence seems a li'l confusing MJ! So you're saying after some tweaking a single plain and carb could suffice.. but an Air Gap is the way to go!? so a 650 carb... what kind?

 

Weiand X-celerator and 650 DP Holley..... then a camshaft setup that will squeeze those TW heads potential.......it has low 11's N/A written all over it, and 100% driveable......

 

uh oh... now were talking single plains.. sorry bro but for now the xe270 has gotta stay in... still thinking xcelerator? I'm just going by stereotype, but wouldn't a DP provide more torque thus having the advantage in the 1/4? I know in racing, I'm not gonna drop below 3000 rpms ( well hell, that's how I always drive this car.. to the boards..) which would seem ideal for a SP where it makes more hp up top.... but is it not torque that actually moves ya? Thanks bud

 

don't forget that now you will need a new distributor, fuel pump, lines, in tank sending unit.. etc

shoulda just swapped to head studs

 

I'm aware of that adder. But may I ask how you figure head studs will make the difference with my fuel injection.? I have great oil pressure and running a perfect temp.. how will it change the fact that I'm not getting enough fuel?

 

your fuel is fine.. the problem is that you are STILL running your stock head bolts

Hows about you spend the $80 and humor me....

 

I gladly will if you can tell me for sure that's what my problem is and that afterward I won't run lean, it won't knock, and it's worth my time to tare the heads off for the fourth time. It just doesn't make sense... to me, maybe I'm missing something but how can them bolts a difference?

 

I think you partially answered your question..... you're basing your rationale on stereotypes. How does a DP provide more torque down low?.... by choking intake stream to correct/crutch wrong valve events. If any race at the track (which is your goal) takes place above 3500 rpm's (anything lower or close, and you have a bog condition).... why focus on torque below that threshold? Isn't torque within a specific rpm window (aka horsepower) + acceleration (how fast that torque window is processed) what wins races?

Flow benches don't win races, but look at your example. You have a set of TW heads with a max flow capacity of 251 cfm and a DP intake in the 230 - 240 cfm range...... add the carburetor restriction and it drops even more. Wouldn't you be using only a percentage of the $$ you spent on the heads flow capacity? .... thus choking your setup's intake capability?

Doesn't it make more sense performance/efficiency wise to ensure intake flow capacity compatibility, and use valves manipulation to control flow? IOW.... you are setting it around the wrong valve events configuration and limiting its RPM potential. Just a thought.