T O P I C R E V I E W
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ONEQKFIVE0
Member # 1591
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posted
here's my set up... dss 306 short block rpm heads cane 1.7 rockers trickflow heat intake 70tb with egr stock 19 pound injectors msd 6al ok i been timming it 12 to 13 but it back fire at 4200 rpm i might just time it to stock 10 what you guys think
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FasterDamnit
Member # 442
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posted
Cam? Fuel Pressure?
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ONEQKFIVE0
Member # 1591
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posted
b cam and 255 fuel pump what do you think
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ONEQKFIVE0
Member # 1591
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posted
my fp is 52psi
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FasterDamnit
Member # 442
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posted
Why 52? Try 4 psi less, then carefully drive it and see if it pings.
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ONEQKFIVE0
Member # 1591
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posted
say 46 to 48psi what about timing
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FasterDamnit
Member # 442
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posted
12 should be fine.
The point is to change one thing and see what it does. If you drop fuel pressure and it gets worse, you may need to go the other way. But I bet you are rich.
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FasterDamnit
Member # 442
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posted
Oh Mass air???? I hope so. The SD will not behave well w/ the b cam.
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ONEQKFIVE0
Member # 1591
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posted
im running cl 73 air mass & conversion kit from CL
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DropTopFox
Member # 1689
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posted
get it tuned by a pro
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FasterDamnit
Member # 442
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posted
quote: Originally posted by DropTopFox: get it tuned by a pro
Why? It is a very mild combo.
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88gt
Member # 579
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posted
Where are you hearing the backfire? Is it from the intake or exhaust?
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ONEQKFIVE0
Member # 1591
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posted
from the intake damn
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88gt
Member # 579
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posted
Usually intake backfires means you are running lean.
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