M1 SP vs Air Gap

Guess I'll chip in a question along the same line. I have a 408 stroker, 9.6:1 236/[email protected] .544 cam, hooker comps 1 5/8" into 3" exhaust, edel heads, 4000 dynamic 9.5" into 3.73 dana. Currently running a M1 single plane, Best time of 12.26 @ 109, 1.67 60' with slicks. Best time comes when shiftin at 5300!

I had been runnung a Edel (Carter) 600 on the street, and a Holley 750 on the strip. Carter gave better fuel economy, holley gave better time. The Carter had better low end torque. I recently switched to a DemonSizzler TQ, and where was a very noticeable improvement on bottom end torque, and it breathes much better than the Carter 600 on the top end. Idles better, off idles better, etc. Best carb yet, but not sure how it will do at the strip as compared to the holley.

I have a Weiand Stealth that still sits on my numbers matching 340 (in a crate) that has been port matched like my M1, but is otherwise stock. It will accept square or spread bore.

So the question is, since I am shifting below the upper end advantage of the M1, would it actually run better with the stealth?

Put an air gap on it.. my 416 in my "street" duster ran 11.0's with a cam similar to yours,single planes like the m1 like rpms,why are you shifting so low?? i use to take the 416 to 6500 launching at about 2800 60's in the low 1.40's...