could the intake be holding my low end down?

yellow rose said

The reason the factory used that junk was because they had to give somewhere. They wanted more runner length so that's how they got it.

You don't need to spend more than 15 minutes on a flow bench to see how stupid it is to put a corner in any flow path. If you do, you'd better know why, because it's a loser. Never is putting a corner in the flow path a good thing. Never.

If you lose power with e SP intake over a DP that's on you and your combination.

Click to expand...

What rpm do they operate in.
Street car, not in the rpm ran.
I gave up upper range power, aka tuned for lower end torque so I could get that snappy lane change, rocket ship on 3.73 gears
It wasnt earth shattering at 390 hp-stock x heads. Real world, not race track or even ideal.. a regular old school combo
It's going together, reconfigured , in another thread I need to update. Heads now do 270's and cam is a tweaked version of the engle kv3...single plane might like it.