Originally Posted By Cab_Burge
Originally Posted By sgcuda
Maybe advancing the cam CL would help lower the power band.

I would not shorten the plenum depth based on my own experiences adding spacer under the carbs helping the bottom end on a nearly stock 1969 440 HP cop car motor work Almost every NHRA SS single four barrel motor being raced have tall plenum, but they do have high stall converters also confused work
Advancing the cam will really help the bottom end, I'm not sure how much on your deal as I don't know the cam specs shruggy
Every Mopar street and strip or race only motor I've advance the cams on went faster at the track and felt better down low on the street as well as picked up torque on the engine dyno up scope


What Super Stockers do with plenum size increases wouldn't apply here as they are stock carb CFM limited.

'86 Maple Grove KOS Mopar low qualifier......true street legal with no power adders.

NOS-used when losing since 1940.