Lemon_Belve
Well-Known Member
Hello Guys,
I have a Problem with my 69 440hp engine. It is Stock engine with edelbrock Performer RPM intake, holley 770 street Avenger carb and hedman Headers.
Distributor is Something No Name electronic Distributor with new magnetic Pickup. Everything works fine with this. Air Gap is fine
New Carter m6903 fuel Pump with new 3/8 Line and Filter from Pump to carb.
Before it was a Standard Big Block pump
Sparkplug are Autolite 85
Sparkplug wires are MSD 8.5mm and Taylor hi Energy 8mm
As ignition I have a Orange Box, a MSD 6al and a GM HEI parallel
Every wire from Distributor to ignition, from coil etc is complete new from my own. Seperate Switch for Switched positive 12v, negative cable from battery direct to ignition.
Ignition coil for Orange Box is a cheap Standard coil with Ballast resistor and fast ps040 coil with or without resistor
For MSD 6al I used fast ps040 without resistor and Ford fd478 coil.
For GM HEI I use the fd478 coil.
With the orange Box its only possible to Rev until 4800rpm and it Break Up
With GM HEI it is possible to Rev until 5200 and with MSD 6al until 5500rpm.
Here a Video with the GM HEI Setup :
.
I don't know what will be my issue?
I have a short rear end (4.3) so I need the higher RPM.
Any idea?
Best regards
André
I have a Problem with my 69 440hp engine. It is Stock engine with edelbrock Performer RPM intake, holley 770 street Avenger carb and hedman Headers.
Distributor is Something No Name electronic Distributor with new magnetic Pickup. Everything works fine with this. Air Gap is fine
New Carter m6903 fuel Pump with new 3/8 Line and Filter from Pump to carb.
Before it was a Standard Big Block pump
Sparkplug are Autolite 85
Sparkplug wires are MSD 8.5mm and Taylor hi Energy 8mm
As ignition I have a Orange Box, a MSD 6al and a GM HEI parallel
Every wire from Distributor to ignition, from coil etc is complete new from my own. Seperate Switch for Switched positive 12v, negative cable from battery direct to ignition.
Ignition coil for Orange Box is a cheap Standard coil with Ballast resistor and fast ps040 coil with or without resistor
For MSD 6al I used fast ps040 without resistor and Ford fd478 coil.
For GM HEI I use the fd478 coil.
With the orange Box its only possible to Rev until 4800rpm and it Break Up
With GM HEI it is possible to Rev until 5200 and with MSD 6al until 5500rpm.
Here a Video with the GM HEI Setup :
.
I don't know what will be my issue?
I have a short rear end (4.3) so I need the higher RPM.
Any idea?
Best regards
André