mild build 454
#11
Registered
Finding the 29 outlaw weights 6800 with twin BBC, so if the boat doesn't catch air, 450+ should not be an issue on the drives
#12
Charter Member # 55
Charter Member
I would contact Top Quality Source for Boat MEFI ECU Tuning | CO, KS, OK, TX, NE, AR, MO | MEFI Tuning and see if they have an ECM tune already written for what you are building with one of the listed cams.
#13
Platinum Member
Platinum Member
Thread Starter
Are the 420's 454 cubes ? what heads are you running on these.
#14
Platinum Member
Platinum Member
Thread Starter
I would contact Top Quality Source for Boat MEFI ECU Tuning CO, KS, OK, TX, NE, AR, MO MEFI Tuning and see if they have an ECM tune already written for what you are building with one of the listed cams.
#15
Platinum Member
Platinum Member
Thread Starter
I noticed the specs are the same on the 168761 and 169621 112lsa
#17
Registered
i ran that same platform for years. Was a 4 mph plus gain over the 454/365 in a single 24. Then stepped up to dart oval port heads with the 502/465 cam and lightning headers. That was an awesome combo and made great power.