Didya ever try to change the spark plugs on one of those old Chizzlers?
Back in the 60's the high pro Plymouths would set on the ready line with bags of ice on those runners to keep em as cold as possible for the race .
Some of those setups were really potent -
Some were faster than 327 Chevs --some weren't
I put the trumpet on my ZDZ40 on the new 201 Walbro and added a big diameter header to the JMB can - the whole setup seems very good - it runs 7200 right from the one flip get go on the Mejzlic 21x8 -
now to try to sort out the best combo.