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New Mopar 340 Six Pack Induction Setup

1967 Mopar Engine 340 Six Pack Front View
When the screaming was over,... 
   
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1967 Mopar Engine 340 Six Pack Front View
When the screaming was over, the all-new 340 Six Pack engine had lived up to its legacy. It delivered more power than expected and has proven itself as good as--if not better than--its predecessor, and that was a big shoe to fill.
Test - 300 rpm/second
EngSpdSTPTrqSTPPwrBSFC
RPMClb-ftCHplb/hph
*3,000341.9195.30.478
3,200353.7222.30.446
3,400 360.0233.1 0.460
3,600361.5247.80.454
3,800366.6265.30.464
4,000378.7288.40.466
4,200393.7314.80.448
4,400395.7331.50.468
4,600392.1343.40.475
4,800383.1350.10.483
5,000382.3364.00.479
*5,200372.1368.40.492
5,400358.4368.50.504
5,600349.4372.60.503
5,800348.2384.60.483
6,000334.9382.60.515
6,200313.0369.50.527
6,400314.7383.40.519
6,600308.1387.10.509
6,800300.0388.50.525

*Range: 3,000 rpm - 5,200 rpm
AVG: 4,100373.1292.90.470

Our best tune was with the following jets and timing
DSPS
Front8379
Center6765
Rear7983
Power Valve: 2.5
Timing 35 degrees total

1967 Mopar Engine 340 Six Pack Front View
If you want to properly tune... 
   
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1967 Mopar Engine 340 Six Pack Front View
If you want to properly tune any engine, you need a minimum of a good air/fuel meter. We had one from F.A.S.T. that measures both exhaust pipes, and for good measure, we also used the EGT sensors mounted in each header tube.
1967 Mopar Engine 340 Six Pack Front View 1967 Mopar Engine 340 Six Pack Front View
YearOne
(800) 932-7663

www.yearone.com
Holley Performance Products
Bowling Green
KY
Tech and Info: 270/7

holley.com
ProMax Performance
Indianapolis
IN

Promaxcarbs.com
F.A.S.T. Fuel Air Spark Technologies
Ashland
MS  38603
662/224-3495

fuelairspark.com
Mopar Performance
www.moparperformance.com
Automotive Performance Engines
Auburndale
FL
(863) 967-8781

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1967 Mopar Engine 340 Six Pack Front View 1967 Mopar Engine 340 Six Pack Front View
1967 Mopar Engine 340 Six Pack Front View 1967 Mopar Engine 340 Six Pack Front View
 
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